Would somebody tell me about the 243 Ackley Improved, thnx.

J

jtoews80

Handloader
May 19, 2007
919
15
I've seen this caliber on reamer lists and in custom die lists. Heard little bits about it now and then. Seems like a 243 win case blown out to a 40 degree shoulder with 243 WSSM performance, minus some of the throat erosion and luck of the draw rep of the super shadow m70 in the accuracy dept. And yes :grin: , uses 243 win brass as well.

It seems to me that a competent smith could take a Rem 700 Varmint or 700SPS varmint in 243 and rechamber it to 243 AI with relatively little effort. There is a wealth of information and knowledge among the members of this forum, so somebody has to have some information on this round. If so, please enlighten me. Most likely I will plan forever and mayber build one 5 years from now, but that is the fun part......

CC.
 
Just got my 700 SPS Varminter 243 Win back in the spring and thinking about turning it into a 243AI.
 
The 243Ackley Improved is one hot little round. If you are willing to go to all the trouble that this wild cat will put you through in brass and load development, with the extra gain in velocity and for sure shorter barrel life, then have fun. I have owned many wild cats and some were Ackley Improved versions and they are a lot of work and I think the 240 Weatherby is an easier way to go. If I were you (and I am not) I would stay with the 243 because it is truly one fine round. Load work and development is easy to obtain accuracy and very good velocities and factory ammo is available in a pinch if you forgot or do not have time to reload.
 
I have one in the Encore, honestly I can't see any significant gain. Other than the cool factor and possibly longer case life, that family of cases just don't gain much volume by AI'ing. I measured mine once and if I remember correctly, only got a 1.5 gr. increase over the commerical. Plus they are fairly high intensity rounds to begin with, so not much room for bumping up the pressures. Mine has real tight chamber, and I still can't load to max published loads weight wise. Velocity increase I'm figuring only about 50 fps gain. But without doing a b4 and after it's hard to tell.
Great round either way, and nothing wrong with going to the AI, I'm just saying I wouldn't expect major diffeernces.

Dave
 
The 243 win is great, and for the cost a great varmint or WT rifle. Bullet selection is wide and it is an easy chambering to load for. No complaints there.

I like unique rifles, but not if it is a tremendous amount of time in case prep etc. I'm still tied up building a 264 on a savage 111, so I'll have to finish and fine tune that one before I try anything 6mm.

Bullet was right on saying that a factory chambering is better than a Wildcat if one hasn't got alot of time to play at the reloading bench. That is why I went with a 264 for the Savage. THe 240Wby or 243 WSSM would both outperform a 243 AI. Thanks for the info.

CC.
 
+1 agreed with Dave. The little you stand to gain is not worth the cost of reaming and fire forming the brass and then loading with your hunting load after figuring out the best "ackleyized" load. I feel the 243 win is good within its parameters as is and if you want more, just get a 6mm remington with its longer neck and a faster twist barrel. But, there is that cool factor about the AI with that sharp shoulder. I think P.O. Ackley saw the biggest benefit in "ackleying" the 22-250 of all cartridges he played with. He was a little over the top in his older days, from what I have read. I had a 243 with a slow twist that loved 70-75 grain bullets the most and what I found was very accurate loads with the fire form loads not even close to the potential of the standard chambering. Check out the 6mmBr site that talks about the Ackley a lot more before making the final decision. IMO if you don't go to a faster twist to shoot the heavy bulllets faster, there really is no gain.
 
How bout a 6mm WSm with the reg 35 degree or better yet a 44 degree Improved sjoulder. The regular is 78 grns case capacity and the improved would be about 80-82...... Basically a 243 with a 300 wby case to feed it. Can we say Heavy bullet/Long Barrel?? Would be deadly with DTAC 115s hehehehe Don't want to now how fast the 70 grn BT's would go. Bang, SPLAT!!! :twisted: :twisted:
Now that would be deadly on yotes!!!

CC.
 
Would a 1-8 or 1-7.5 twist destroy 70 or 80 grn Bt's or would they handle the fast rate?? Be a real hoot I think.

PacNor has a reamer on their list and dies are 126 from Graf for Redding dies.

Anybody use the Redding bushing sets?? I wonder if I could use a 270 WSM set and use a smaller 6mm bushing??
 
Go for the Ackley! I have two Acklerized rifle - both are tack driver. Brass trimming is nonexistent and fireforming is a breeze. Below is the side by side comparison of both standard and Acklerized round. To the left is the 338 Lapua Ackley and to the right, the 223 Remington.

Picture178-2.jpg
 
Actually from what Ive read (and seen in Ackley's own book) his greatest percentage of velocity increase for an "Acklied" cartrige was the 250-3000 Savage. According to Ackley his fastest load in a standard 250 Sav with 100 ghrn bullet clocked 2,925 with 37 grains of 4064. The Ackley shoved the same slug along at 3271 woth 40 grains of the same powder. Sorry not to high jack your thread. I dont have Ackley's figures for the 243. Big advantage to the 250 Ackley was the ability to load 125 grn bullets. 42 Grains of 4350 would reportedly move them along at 2,950 fps. That would give any 243 a run for the money.....or better.
I really think about it....but the old 250 shoots so good I'm scared to mess with it.
 
I limited pressurs to 60Kpsi and picked 3 random bullets to give you an idea.


Cartridge : .243 Ackley Imp
Bullet : .243, 65, Hornady V-Max
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 60000 psi, or 413 MPa

or a maximum loading ratio or filling of 105 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

110 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Somchem S365 104.5 52.9 3.43 3820 100.0 60000 11879 0.965 ! Near Maximum !
Hodgdon H4350 101.9 51.6 3.34 3799 98.0 60000 12275 0.953 ! Near Maximum !
IMR 4895 94.0 46.2 3.00 3786 100.0 60000 11280 0.943 ! Near Maximum !
Ramshot Hunter 98.9 53.6 3.47 3784 97.7 60000 12326 0.963 ! Near Maximum !
Winchester 760 96.5 51.9 3.36 3783 96.8 60000 12348 0.964 ! Near Maximum !
Norma URP 101.8 51.2 3.32 3780 99.0 60000 12080 0.966 ! Near Maximum !
Bofors RP19 ~approximation 101.8 51.2 3.32 3780 99.0 60000 12076 0.966 ! Near Maximum !
Vihtavuori N550 98.8 51.3 3.33 3775 98.8 60000 12168 0.971 ! Near Maximum !
Ramshot BigGame 98.0 49.9 3.23 3768 99.6 60000 11757 0.964 ! Near Maximum !
SNPE Vectan SP 11 95.1 49.9 3.24 3766 99.6 60000 11739 0.964 ! Near Maximum !
Hodgdon H414 92.7 50.2 3.26 3756 97.4 60000 12075 0.970 ! Near Maximum !
Bofors RP11 ~approximation 92.6 47.1 3.05 3755 99.4 60000 11673 0.968 ! Near Maximum !
Alliant Reloder-15 92.6 47.1 3.05 3755 99.4 60000 11673 0.968 ! Near Maximum !
Raufoss RA11 92.6 47.1 3.05 3755 99.4 60000 11673 0.968 ! Near Maximum !
Norma 203B 93.1 47.3 3.07 3752 99.6 60000 11599 0.969 ! Near Maximum !
Accurate 4350 105.0 51.1 3.31 3747 98.8 58492 12060 0.993 ! Near Maximum !
Raufoss RA4 104.3 53.0 3.44 3744 94.7 60000 12059 0.958 ! Near Maximum !
Bofors RP4 ~approximation 104.3 53.0 3.44 3744 94.7 60000 12059 0.958 ! Near Maximum !
Norma 204 101.0 53.0 3.44 3744 94.7 60000 12059 0.958 ! Near Maximum !
IMR 3031 92.3 43.9 2.84 3743 100.0 60000 10664 0.966 ! Near Maximum !
IMR 4320 94.6 47.3 3.07 3739 99.6 60000 11272 0.953 ! Near Maximum !
Norma 203 old 94.4 48.5 3.15 3738 99.9 60000 11432 0.982 ! Near Maximum !
ADI AR 2209 105.0 53.1 3.44 3738 94.3 58435 12200 0.963 ! Near Maximum !
Hodgdon H380 93.8 48.8 3.16 3732 98.6 60000 11656 0.973 ! Near Maximum !
Rottweil R903 99.4 48.6 3.15 3731 99.9 60000 11356 0.982 ! Near Maximum !
Somchem S355 96.6 48.0 3.11 3726 99.8 60000 11326 0.976 ! Near Maximum !
SNPE Vectan SP 9 90.3 47.4 3.07 3724 99.6 60000 11278 0.963 ! Near Maximum !
PB Clermont PCL 516 90.4 49.0 3.18 3722 98.6 60000 11491 0.965 ! Near Maximum !
Norma MRP 105.0 55.7 3.61 3718 95.1 53373 12981 1.012 ! Near Maximum !
Hodgdon VARGET 95.3 46.9 3.04 3712 99.3 60000 11199 0.957 ! Near Maximum !
ADI AR 2208 95.0 46.9 3.04 3712 99.3 60000 11199 0.957 ! Near Maximum !
Hodgdon H4895 95.1 46.8 3.03 3711 100.0 60000 10710 0.959 ! Near Maximum !
Alliant Reloder-19 105.0 53.4 3.46 3710 94.2 57005 12200 0.981 ! Near Maximum !
IMR 4064 95.9 46.1 2.99 3709 99.4 60000 11077 0.960 ! Near Maximum !
Accurate 4064 98.5 46.8 3.04 3708 100.0 60000 10805 1.000 ! Near Maximum !
Rottweil R904 104.9 52.6 3.41 3701 93.4 60000 11665 0.960 ! Near Maximum !
Norma 202 90.2 45.1 2.92 3697 100.0 60000 10554 0.970 ! Near Maximum !
Accurate 2495 91.8 44.2 2.86 3695 100.0 60000 10474 1.001 ! Near Maximum !
Rottweil R907 98.6 49.2 3.19 3691 96.1 60000 11465 0.969 ! Near Maximum !
IMR 4007 SSC 95.5 49.3 3.19 3690 96.1 60000 11456 0.970 ! Near Maximum !
Rottweil R902 92.6 45.4 2.94 3690 100.0 60000 10807 0.976 ! Near Maximum !
Vihtavuori N540 92.3 47.5 3.08 3685 100.0 60000 10596 0.972 ! Near Maximum !
IMR 4350 105.0 51.1 3.31 3683 93.2 57790 11783 0.977 ! Near Maximum !
Vihtavuori N150 101.7 48.8 3.16 3678 100.0 60000 10628 0.973 ! Near Maximum !
Vihtavuori N140 97.9 47.9 3.10 3673 100.0 60000 10596 0.967 ! Near Maximum !
Bofors RP14 ~approximation 105.0 53.4 3.46 3673 93.8 55674 12012 0.992 ! Near Maximum !
IMR 7828 SSC 105.0 54.9 3.55 3671 91.0 53994 12431 0.999 ! Near Maximum !
Vihtavuori N135 98.2 45.3 2.93 3662 100.0 60000 9955 0.977 ! Near Maximum !
Somchem S385 105.0 54.0 3.50 3658 95.3 56445 11779 1.004 ! Near Maximum !
Accurate 2700 96.4 50.6 3.28 3626 95.9 60000 10780 0.973 ! Near Maximum !
Vihtavuori N560 105.0 54.6 3.54 3623 89.6 50814 12551 1.034
ADI AR 2213 105.0 54.0 3.50 3621 90.3 52605 12134 1.010
Somchem S335 90.3 45.0 2.91 3618 100.0 60000 9767 0.975 ! Near Maximum !
Vihtavuori N133 92.1 42.9 2.78 3607 100.0 60000 9378 0.963 ! Near Maximum !
Bofors RP5/NP ~approximation 105.0 54.0 3.50 3602 92.2 50095 12312 1.043
Raufoss RA15 105.0 54.0 3.50 3602 92.2 50095 12312 1.043
Alliant Reloder-22 105.0 54.0 3.50 3602 92.2 50095 12312 1.043
Hodgdon H4831 SC 105.0 54.0 3.50 3579 89.4 53450 11491 1.009 ! Near Maximum !
Accurate MAGPRO 105.0 56.8 3.68 3577 87.2 49908 12347 1.050
IMR 4831 105.0 51.1 3.31 3570 96.0 50669 11603 1.051
Rottweil R905 105.0 53.0 3.43 3511 88.7 48305 11621 1.061
Winchester WXR 105.0 52.8 3.42 3489 90.2 45694 11899 1.089
SNPE Vectan SP 12 105.0 57.0 3.69 3461 88.1 45920 11879 1.083
PB Clermont PCL 517 105.0 57.0 3.69 3452 87.8 45666 11852 1.086
Ramshot Magnum (Big Boy) 105.0 56.9 3.69 3446 87.6 45404 11838 1.089
Vihtavuori N165 105.0 52.8 3.42 3430 91.8 46992 10821 1.079
IMR 7828 105.0 51.9 3.36 3428 86.7 44264 11538 1.096
Vihtavuori N160 105.0 51.2 3.32 3426 89.5 48218 10615 1.064
Hodgdon H4831 105.0 51.9 3.36 3416 86.6 46468 10912 1.076
ADI AP 2214 105.0 55.4 3.59 3408 86.9 45752 11287 1.083
Alliant Reloder-25 105.0 53.1 3.44 3394 92.6 41280 11823 1.138
Accurate 3100 105.0 50.5 3.27 3280 91.9 40268 10654 1.188
Norma MRP 2 105.0 53.4 3.46 3244 83.8 36987 11239 1.209
Hodgdon H1000 105.0 52.8 3.42 3185 82.1 38112 10360 1.181
Vihtavuori N570 105.0 56.3 3.65 3174 74.1 36212 11070 1.222
Hodgdon Retumbo 105.0 53.7 3.48 3051 81.6 32642 10471 1.269
Vihtavuori N170 105.0 52.8 3.42 3012 73.9 33993 9361 1.265
Vihtavuori 24N41 105.0 56.9 3.69 2999 66.3 35397 9181 1.237
ADI AR 2218 105.0 56.9 3.69 2954 64.8 33221 9473 1.269
Hodgdon H870 105.0 55.2 3.57 2885 69.8 29027 9597 1.346
Hodgdon US 869 105.0 56.9 3.69 2853 66.8 29933 9044 1.333
Hodgdon 50BMG 105.0 54.2 3.51 2773 57.8 28757 8195 1.350
SNPE Vectan SP 13 105.0 54.6 3.54 2692 64.5 25750 8166 1.420
PB Clermont PCL 513/520/9520 105.0 54.6 3.54 2614 60.9 24388 7725 1.453
Vihtavuori 20N29 105.0 57.5 3.72 2588 58.1 24350 7674 1.457
Accurate 8700 105.0 54.7 3.54 2569 59.0 24076 7366 1.460
NC A3502 ,test only 105.0 52.2 3.39 2465 41.6 24138 5700 1.457
TLP A 502(RH) ,test only 105.0 52.2 3.39 2430 44.5 22386 5943 1.502
V1734 7-multiperf ,test only 105.0 52.2 3.39 1768 20.6 13033 2788 1.896



Cartridge : .243 Ackley Imp
Bullet : .243, 85, Hornady Interbond 22539
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 60000 psi, or 413 MPa

or a maximum loading ratio or filling of 105 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

126 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 103.8 52.8 3.42 3487 98.9 60000 13466 1.061 ! Near Maximum !
Vihtavuori N560 105.0 52.3 3.39 3453 95.7 59106 13500 1.064 ! Near Maximum !
IMR 7828 SSC 103.9 52.0 3.37 3452 96.3 60000 13147 1.049 ! Near Maximum !
ADI AR 2213 104.8 51.7 3.35 3435 96.1 60000 12988 1.048 ! Near Maximum !
Bofors RP5/NP ~approximation 105.0 51.8 3.35 3424 97.4 58554 13082 1.074 ! Near Maximum !
Alliant Reloder-22 105.0 51.8 3.35 3424 97.4 58554 13082 1.074 ! Near Maximum !
Raufoss RA15 105.0 51.8 3.35 3424 97.4 58554 13082 1.074 ! Near Maximum !
Accurate MAGPRO 105.0 54.4 3.53 3423 93.9 58511 13425 1.077 ! Near Maximum !
Hodgdon H4350 97.6 47.3 3.07 3413 99.5 60000 12185 1.056 ! Near Maximum !
Somchem S365 99.7 48.4 3.13 3411 100.0 60000 11550 1.072 ! Near Maximum !
ADI AR 2209 101.7 49.3 3.20 3406 97.4 60000 12463 1.051 ! Near Maximum !
Ramshot Hunter 94.8 49.2 3.19 3405 99.3 60000 12298 1.065 ! Near Maximum !
Winchester 760 92.4 47.6 3.09 3403 98.8 60000 12331 1.066 ! Near Maximum !
Alliant Reloder-19 102.2 49.8 3.23 3402 97.5 60000 12527 1.060 ! Near Maximum !
Bofors RP14 ~approximation 103.0 50.2 3.25 3394 97.5 60000 12429 1.060 ! Near Maximum !
Norma URP 97.4 47.0 3.04 3391 99.9 60000 11893 1.070 ! Near Maximum !
Bofors RP19 ~approximation 97.4 47.0 3.04 3391 99.9 60000 11889 1.070 ! Near Maximum !
Vihtavuori N550 94.5 47.1 3.05 3388 99.9 60000 12007 1.075 ! Near Maximum !
Accurate 4350 101.1 47.1 3.05 3386 99.9 60000 11895 1.087 ! Near Maximum !
Bofors RP4 ~approximation 100.1 48.8 3.16 3377 97.3 60000 12204 1.060 ! Near Maximum !
Raufoss RA4 100.1 48.8 3.16 3377 97.3 60000 12204 1.060 ! Near Maximum !
Norma 204 97.0 48.8 3.16 3377 97.3 60000 12204 1.060 ! Near Maximum !
Ramshot BigGame 93.8 45.7 2.96 3373 100.0 60000 11472 1.067 ! Near Maximum !
SNPE Vectan SP 11 91.0 45.8 2.97 3371 100.0 60000 11456 1.068 ! Near Maximum !
Hodgdon H4831 SC 104.3 51.4 3.33 3366 94.8 60000 12253 1.057 ! Near Maximum !
IMR 4831 105.0 49.0 3.18 3366 99.4 59030 11972 1.085 ! Near Maximum !
Somchem S385 102.5 50.5 3.27 3362 98.4 60000 12042 1.079 ! Near Maximum !
IMR 4350 102.0 47.6 3.09 3362 96.6 60000 12071 1.062 ! Near Maximum !
Rottweil R904 100.9 48.5 3.14 3342 96.3 60000 11855 1.061 ! Near Maximum !
IMR 4320 90.5 43.4 2.81 3341 100.0 60000 10969 1.058 ! Near Maximum !
Rottweil R905 105.0 50.8 3.29 3341 94.9 56365 12506 1.093 ! Near Maximum !
Norma 203 old 90.2 44.5 2.88 3339 100.0 60000 11081 1.088 ! Near Maximum !
Rottweil R903 95.0 44.5 2.88 3334 100.0 60000 11007 1.087 ! Near Maximum !
SNPE Vectan SP 12 105.0 54.7 3.54 3334 95.3 53588 12960 1.109 ! Near Maximum !
Somchem S355 92.4 44.1 2.86 3329 100.0 60000 11001 1.081 ! Near Maximum !
PB Clermont PCL 517 105.0 54.7 3.54 3327 95.1 53277 12951 1.111 ! Near Maximum !
Winchester WXR 105.0 50.6 3.28 3323 96.2 53343 12769 1.121 ! Near Maximum !
Ramshot Magnum (Big Boy) 105.0 54.5 3.53 3322 95.0 52973 12944 1.114 ! Near Maximum !
Rottweil R907 94.7 45.3 2.94 3321 98.3 60000 11487 1.071 ! Near Maximum !
Hodgdon VARGET 91.4 43.1 2.79 3321 100.0 60000 10962 1.061 ! Near Maximum !
ADI AR 2208 91.1 43.1 2.79 3321 100.0 60000 10962 1.061 ! Near Maximum !
IMR 4007 SSC 91.7 45.4 2.94 3321 98.3 60000 11478 1.072 ! Near Maximum !
IMR 4064 91.9 42.3 2.74 3315 100.0 60000 10791 1.065 ! Near Maximum !
Hodgdon H4895 91.0 42.9 2.78 3305 100.0 60000 10378 1.064 ! Near Maximum !
Accurate 4064 93.9 42.8 2.77 3296 100.0 60000 10423 1.107 ! Near Maximum !
Vihtavuori N150 97.4 44.8 2.90 3283 100.0 60000 10336 1.079 ! Near Maximum !
Vihtavuori N140 93.9 44.0 2.85 3279 100.0 60000 10292 1.072 ! Near Maximum !
IMR 7828 105.0 49.8 3.22 3277 93.9 51123 12563 1.129
ADI AP 2214 105.0 53.1 3.44 3272 94.3 52669 12364 1.114
Accurate 2700 92.8 46.7 3.03 3266 98.2 60000 10834 1.075 ! Near Maximum !
Alliant Reloder-25 105.0 50.9 3.30 3251 98.4 47931 12597 1.168
Vihtavuori N165 105.0 50.6 3.28 3251 97.1 54722 11478 1.115 ! Near Maximum !
Vihtavuori N135 93.7 41.4 2.68 3246 100.0 60000 9615 1.086 ! Near Maximum !
Hodgdon H4831 105.0 49.8 3.22 3245 93.1 53429 11833 1.114 ! Near Maximum !
Vihtavuori N160 105.0 49.1 3.18 3236 95.1 55314 11346 1.105 ! Near Maximum !
Norma MRP 2 105.0 51.2 3.32 3132 92.0 43427 12458 1.234
Accurate 3100 105.0 48.4 3.14 3127 97.4 47786 11287 1.214
Vihtavuori N570 105.0 54.0 3.50 3093 83.9 42157 12757 1.248
Hodgdon H1000 105.0 50.6 3.28 3068 90.8 43841 11588 1.215
Hodgdon Retumbo 105.0 51.5 3.34 2969 91.8 37702 11975 1.313
Vihtavuori 24N41 105.0 54.5 3.53 2902 75.2 40518 10652 1.275
Vihtavuori N170 105.0 50.6 3.28 2897 82.1 39854 10550 1.307
ADI AR 2218 105.0 54.5 3.53 2894 77.0 38131 11625 1.308
Hodgdon H870 105.0 52.9 3.43 2825 80.6 33710 11322 1.389
Hodgdon US 869 105.0 54.5 3.53 2787 77.3 34448 10743 1.377
Hodgdon 50BMG 105.0 52.0 3.37 2690 66.4 33042 9633 1.402
SNPE Vectan SP 13 105.0 52.3 3.39 2626 74.4 29789 9636 1.472
PB Clermont PCL 513/520/9520 105.0 52.3 3.39 2552 70.8 28127 9205 1.508
Vihtavuori 20N29 105.0 55.1 3.57 2543 68.5 28129 9304 1.508
Accurate 8700 105.0 52.4 3.40 2512 69.8 27635 8973 1.516
NC A3502 ,test only 105.0 50.1 3.25 2374 48.2 27212 6796 1.528
TLP A 502(RH) ,test only 105.0 50.1 3.25 2346 52.2 25360 7209 1.572
V1734 7-multiperf ,test only 105.0 50.1 3.25 1695 23.8 14464 3327 2.006




Cartridge : .243 Ackley Imp
Bullet : .243, 95, Nosler Part.Sp 16315
Cartridge O.A.L. L6: 2.710 inch or 68.83 mm
Barrel Length : 24.0 inch or 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 60000 psi, or 413 MPa

or a maximum loading ratio or filling of 105 %

These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

134 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 101.1 51.3 3.33 3330 99.5 60000 13500 1.111 ! Near Maximum !
Vihtavuori N560 102.8 51.1 3.31 3319 97.1 60000 13706 1.106 ! Near Maximum !
IMR 7828 SSC 101.5 50.7 3.29 3307 97.5 60000 13302 1.096 ! Near Maximum !
Accurate MAGPRO 103.1 53.3 3.45 3303 95.7 60000 13718 1.114 ! Near Maximum !
Alliant Reloder-22 103.0 50.7 3.28 3296 98.6 60000 13242 1.111 ! Near Maximum !
Bofors RP5/NP ~approximation 103.0 50.7 3.28 3296 98.6 60000 13242 1.111 ! Near Maximum !
Raufoss RA15 103.0 50.7 3.28 3296 98.6 60000 13242 1.111 ! Near Maximum !
SNPE Vectan SP 12 105.0 54.5 3.53 3296 97.9 58868 13426 1.109 ! Near Maximum !
ADI AR 2213 102.4 50.4 3.26 3291 97.4 60000 13154 1.095 ! Near Maximum !
PB Clermont PCL 517 105.0 54.5 3.53 3290 97.8 58519 13429 1.112 ! Near Maximum !
Ramshot Magnum (Big Boy) 105.0 54.4 3.53 3285 97.7 58180 13426 1.115 ! Near Maximum !
Winchester WXR 105.0 50.5 3.27 3268 98.3 58444 13170 1.126 ! Near Maximum !
Rottweil R905 104.2 50.3 3.26 3259 97.0 60000 12863 1.111 ! Near Maximum !
ADI AR 2209 99.3 48.0 3.11 3256 98.4 60000 12555 1.100 ! Near Maximum !
Hodgdon H4350 95.1 46.0 2.98 3254 99.9 60000 12149 1.106 ! Near Maximum !
Alliant Reloder-19 99.7 48.5 3.15 3252 98.5 60000 12613 1.108 ! Near Maximum !
Ramshot Hunter 92.4 47.9 3.10 3248 99.8 60000 12287 1.115 ! Near Maximum !
Winchester 760 90.0 46.3 3.00 3248 99.5 60000 12337 1.115 ! Near Maximum !
Bofors RP14 ~approximation 100.5 48.9 3.17 3244 98.5 60000 12519 1.109 ! Near Maximum !
Somchem S365 97.0 46.9 3.04 3242 100.0 60000 11458 1.124 ! Near Maximum !
Norma URP 94.9 45.7 2.96 3231 100.0 60000 11808 1.120 ! Near Maximum !
ADI AP 2214 105.0 53.0 3.44 3230 97.1 57282 12855 1.118 ! Near Maximum !
Bofors RP19 ~approximation 94.9 45.7 2.96 3230 100.0 60000 11804 1.120 ! Near Maximum !
IMR 7828 105.0 49.7 3.22 3229 96.7 55658 13055 1.135 ! Near Maximum !
Vihtavuori N550 92.2 45.8 2.97 3229 100.0 60000 11934 1.124 ! Near Maximum !
Raufoss RA4 97.7 47.6 3.08 3227 98.3 60000 12294 1.108 ! Near Maximum !
Norma 204 94.6 47.6 3.08 3227 98.3 60000 12294 1.108 ! Near Maximum !
Bofors RP4 ~approximation 97.7 47.6 3.08 3227 98.3 60000 12294 1.108 ! Near Maximum !
IMR 4831 102.8 47.9 3.11 3226 99.9 60000 11978 1.126 ! Near Maximum !
Accurate 4350 98.4 45.8 2.97 3225 100.0 60000 11797 1.138 ! Near Maximum !
Hodgdon H4831 SC 101.9 50.1 3.25 3223 96.2 60000 12432 1.104 ! Near Maximum !
IMR 4350 99.6 46.4 3.01 3214 97.7 60000 12173 1.110 ! Near Maximum !
Somchem S385 100.0 49.2 3.19 3212 99.1 60000 12094 1.128 ! Near Maximum !
Ramshot BigGame 91.4 44.5 2.88 3210 100.0 60000 11379 1.117 ! Near Maximum !
Alliant Reloder-25 105.0 50.8 3.29 3201 99.8 52403 12841 1.172
Rottweil R904 98.5 47.3 3.06 3196 97.4 60000 11974 1.109 ! Near Maximum !
Hodgdon H4831 105.0 49.7 3.22 3189 95.8 57988 12316 1.122 ! Near Maximum !
Vihtavuori N165 105.0 50.5 3.27 3188 98.8 59577 11781 1.122 ! Near Maximum !
Vihtavuori N160 105.0 49.0 3.17 3171 97.3 59684 11727 1.115 ! Near Maximum !
Rottweil R907 92.5 44.2 2.86 3171 99.1 60000 11523 1.120 ! Near Maximum !
Rottweil R903 92.5 43.3 2.80 3171 100.0 60000 10907 1.137 ! Near Maximum !
Somchem S355 90.1 42.9 2.78 3168 100.0 60000 10909 1.130 ! Near Maximum !
Accurate 4064 91.4 41.6 2.69 3129 100.0 60000 10318 1.158 ! Near Maximum !
Vihtavuori N150 95.0 43.6 2.83 3122 100.0 60000 10268 1.129 ! Near Maximum !
Accurate 2700 90.7 45.6 2.95 3120 99.0 60000 10887 1.123 ! Near Maximum !
Vihtavuori N140 91.6 42.8 2.78 3120 100.0 60000 10221 1.121 ! Near Maximum !
Norma MRP 2 105.0 51.1 3.31 3101 95.4 47862 13045 1.234
Vihtavuori N570 105.0 53.9 3.49 3081 88.5 46247 13644 1.246
Vihtavuori N135 91.3 40.3 2.61 3078 100.0 60000 9530 1.138 ! Near Maximum !
Accurate 3100 105.0 48.3 3.13 3074 99.2 52494 11552 1.216
Hodgdon H1000 105.0 50.5 3.27 3037 94.4 47631 12189 1.219
Hodgdon Retumbo 105.0 51.4 3.33 2952 95.8 41102 12634 1.313
ADI AR 2218 105.0 54.4 3.53 2898 83.1 41438 12785 1.308
Vihtavuori 24N41 105.0 54.4 3.53 2884 79.7 43944 11501 1.278
Vihtavuori N170 105.0 50.5 3.27 2868 86.0 43553 11224 1.310
Hodgdon H870 105.0 52.8 3.42 2822 85.8 36926 12240 1.393
Hodgdon US 869 105.0 54.4 3.53 2784 82.6 37513 11680 1.380
Hodgdon 50BMG 105.0 51.9 3.36 2678 70.9 35915 10492 1.412
SNPE Vectan SP 13 105.0 52.2 3.38 2620 79.4 32547 10468 1.471
Vihtavuori 20N29 105.0 55.0 3.56 2550 73.9 30743 10246 1.515
PB Clermont PCL 513/520/9520 105.0 52.2 3.38 2549 75.9 30670 10058 1.518
Accurate 8700 105.0 52.3 3.39 2514 75.5 30038 9894 1.526
NC A3502 ,test only 105.0 50.0 3.24 2358 52.1 29199 7529 1.545
TLP A 502(RH) ,test only 105.0 50.0 3.24 2331 56.5 27301 7997 1.590
V1734 7-multiperf ,test only 105.0 50.0 3.24 1681 25.8 15388 3690 2.039
 
I tried to post the prints I was emailed by Pacific Tool for a 6mm WSM 44 degree shoulder, no luck. The prints are just specs anyway, nothing to scale.

I'm taking my time with this project, if I get a reamer and HS gauges ordered before spring I'll be ahead of schedule. My 264 build was way to haphazard and didn't come togather as well as I would have liked.

CC.
 
I am with Desert Fox on this one, go with the 6mm Ackley Imp. It is an outstanding round in that it is accurate fast and forgiving at the loading bench and recoil is not an issue with it and you are getting so much with the cartridge. Of course I am a fan of anything that comes off the 06 case.
 
You must log in or register to reply here.
AMMUNITIONAmmunition BULLETSBullets BRASSBrass FirearmsFirearms GearGear
Back
Top