240 WBY QL request anyone?

[remingtonman_25_06]

I'd like to see a QL prediction on the 240 WBY with a 28" tube shooting the 108g Hornady ELDMs at max pressure with a few of the top powders if anyone has the time. Thinking of rebarreling my 240 with an 8 twist Bartlein at 28" for a LR coyote/antelope/deer rifle...The factory 24" tube and 10" twist leaves a lot on the table in my opinion and would do much better at longer range with 4" more barrel and an 8 twist shooting a high BC bullet. Right now I'm limited to the 87g VMAX at 3500fps with a BC of .400 which is ok out to 600 yards, but I want it to be a 1K rifle.

 

[SJB358]

Jorey, try the 105 grain Hornady HPBT. It’s stabilized well in a few 1-10 twist 243 Winchester’s and it’s a wrecking ball. .525 BC on it as well. I think you might be surprised by how much you like it.

 

[FOTIS]

I am shooting my 240 Bee this weekend with 108 ELDm's. I will post results. Mine is a MK V Back country with 24" 1:7.5 factory (Criterion) barrel.

 

[remingtonman_25_06]

Thanks Scotty and Fotis. I'm going to pick up a box of the 105g HPBT this evening and start a ladder with RL26 at 53-56g. I wont be shooting them for a bit though, so looking forward to your results Fotis.

 

[FOTIS]

This weekend my friend.
I can tell you one thing. It did a little over an inch 2 weeks ago with the Barnes LRX at 3400 fps but I sat them "close" to the lands. I should have known better since they like a huge jump usually from a Bee.
My COAL was 3.385" I Usually seat them to 3.250 or so. The MK V does have a longer magazine than the Vanguard.

 

[SJB358]

Thanks Scotty and Fotis. I'm going to pick up a box of the 105g HPBT this evening and start a ladder with RL26 at 53-56g. I wont be shooting them for a bit though, so looking forward to your results Fotis.

I am looking forward to seeing what they do for you Jorey. They have been really easy to get shooting and man they work great as an all around bullet, plus they have a decent BC on them and like I said, you might squeak by with the 10 twist.

Fotis, I am betting that new 240 will be a wicked little devil once you get it going.

 

[FOTIS]

I hope so Scott

 

[SJB358]

I hope so Scott

Hope isn't a COA! :mrgreen:

 

[remingtonman_25_06]

Hornady told me they recommend a 9 twist for that 105g HPBT, but they've had reports of them shooting great from 10" twists, so I picked up a box last night. Going to load a few at 54 or 55g with RL26 just to see if they make round holes. If so, I'll start a ladder from 53-56g. Hornady also recomended to seat them at 3.220" and go in or out from there, but I'll probably just start them .005" to .010" off like I do everything. Plenty of mag space in the vanguard to reach the lands.

 

[Gun nut]

Cartridge : .240 Weath. Mag.
Bullet : .243, 108, Hornady ELD-M 24561
Useable Case Capaci: 58.291 grain H2O = 3.785 cm³
Cartridge O.A.L. L6: 3.220 inch = 81.79 mm
Barrel Length : 28.0 inch = 711.2 mm
Powder : Alliant Reloder-26 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 76 44.00 2711 1763 30953 10347 98.0 1.711
-18.0 78 45.10 2780 1853 33229 10582 98.8 1.666
-16.0 80 46.20 2848 1945 35685 10788 99.3 1.622
-14.0 82 47.30 2916 2039 38338 10966 99.7 1.574
-12.0 84 48.40 2983 2133 41203 11112 100.0 1.523
-10.0 86 49.50 3049 2229 44294 11228 100.0 1.474
-08.0 88 50.60 3114 2325 47590 11335 100.0 1.426
-06.0 89 51.70 3178 2422 51110 11438 100.0 1.381
-04.0 91 52.80 3242 2520 54882 11538 100.0 1.338 ! Near Maximum !
-02.0 93 53.90 3304 2618 58926 11634 100.0 1.296 ! Near Maximum !
+00.0 95 55.00 3366 2718 63266 11727 100.0 1.256 !DANGEROUS LOAD-DO NOT USE!
+02.0 97 56.10 3428 2818 67925 11815 100.0 1.218 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 57.20 3489 2919 72932 11900 100.0 1.181 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 58.30 3550 3022 78319 11980 100.0 1.145 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 59.40 3610 3125 84122 12055 100.0 1.111 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 60.50 3670 3230 90381 12126 100.0 1.078 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 95 55.00 3487 2917 78254 11300 100.0 1.156 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 55.00 3179 2423 48737 12323 99.8 1.395

 

[Gun nut]

Here is one with the 105 BTHP

Cartridge : .240 Weath. Mag.
Bullet : .243, 105, Hornady BTHP 2458
Useable Case Capaci: 58.209 grain H2O = 3.779 cm³
Cartridge O.A.L. L6: 3.220 inch = 81.79 mm
Barrel Length : 28.0 inch = 711.2 mm
Powder : Alliant Reloder-26 *C

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-20.0 76 44.00 2721 1726 30203 10267 97.4 1.705
-18.0 78 45.10 2791 1816 32413 10515 98.3 1.660
-16.0 80 46.20 2860 1907 34798 10737 99.0 1.619
-14.0 82 47.30 2929 2000 37372 10930 99.5 1.572
-12.0 84 48.40 2997 2095 40151 11093 99.8 1.522
-10.0 86 49.50 3065 2190 43156 11225 100.0 1.472
-08.0 88 50.60 3132 2286 46399 11330 100.0 1.425
-06.0 90 51.70 3197 2383 49859 11430 100.0 1.379
-04.0 92 52.80 3262 2481 53561 11526 100.0 1.336
-02.0 93 53.90 3326 2580 57532 11619 100.0 1.294 ! Near Maximum !
+00.0 95 55.00 3390 2679 61795 11709 100.0 1.254 ! Near Maximum !
+02.0 97 56.10 3453 2779 66375 11794 100.0 1.215 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 57.20 3515 2880 71300 11875 100.0 1.178 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 58.30 3577 2983 76601 11952 100.0 1.142 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 59.40 3638 3086 82315 12025 100.0 1.108 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 60.50 3700 3191 88481 12093 100.0 1.075 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 95 55.00 3516 2883 76659 11271 100.0 1.152 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 55.00 3193 2377 47558 12281 99.6 1.394

 

[FOTIS]

That is what I am running this weekend.

Magpro, and RL 26 at 52 gr with the 108's. Will advise.

 

[Gun nut]

Cartridge : .240 Weath. Mag.
Bullet : .243, 105, Hornady BTHP 2458
Useable Case Capaci: 58.213 grain H2O = 3.780 cm³
Cartridge O.A.L. L6: 3.220 inch = 81.79 mm
Barrel Length : 28.0 inch = 711.2 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 64000 psi, or 441 MPa
or a maximum loading ratio or filling of 110 %
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 !

21 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
--------------------------------- -----------------------------------------------------------------
ReloadSwiss RS 76 *C 104.8 60.5 3.92 3496 100.0 64000 12589 1.209 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-26 *C 96.3 55.5 3.60 3421 100.0 64000 11752 1.235 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 2 *C 107.4 57.6 3.73 3419 99.9 64000 12355 1.230 !DANGEROUS LOAD-DO NOT USE!
Bofors RP30 107.4 57.6 3.73 3419 99.9 64000 12355 1.230 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 *C 99.3 54.5 3.53 3419 99.6 64000 12439 1.219 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 102.0 58.5 3.79 3417 100.0 64000 12120 1.215 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 101.9 58.4 3.78 3415 100.0 64000 12093 1.215 !DANGEROUS LOAD-DO NOT USE!
Norma MRP *C 97.4 54.6 3.54 3411 100.0 64000 11927 1.227 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 99.5 56.8 3.68 3410 99.0 64000 12567 1.227 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 103.8 54.1 3.51 3408 99.8 64000 12021 1.209 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 98.2 54.1 3.51 3408 99.8 64000 12021 1.209 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 *C 105.2 56.2 3.64 3406 100.0 64000 11457 1.218 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70 *C 94.7 54.1 3.51 3405 100.0 64000 11573 1.211 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 99.3 53.9 3.49 3395 99.8 64000 11948 1.206 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N565 *C 103.8 57.2 3.71 3392 99.7 64000 12256 1.240 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 103.1 57.4 3.72 3390 99.9 64000 11728 1.205 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H1000 *T 108.4 57.5 3.73 3387 99.9 64000 11693 1.205 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2217 108.4 57.5 3.73 3387 99.9 64000 11693 1.205 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 *C 99.6 54.0 3.50 3387 100.0 64000 11853 1.225 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 *C 99.6 54.0 3.50 3387 100.0 64000 11853 1.225 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 99.6 54.0 3.50 3387 100.0 64000 11853 1.225 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2225 110.0 59.4 3.85 3386 100.0 59623 11990 1.248 ! Near Maximum !
Hodgdon Retumbo 110.0 59.4 3.85 3386 100.0 59623 11990 1.248 ! Near Maximum !
Winchester WXR 102.3 54.3 3.52 3386 100.0 64000 11877 1.226 !DANGEROUS LOAD-DO NOT USE!
Bofors RP15 102.3 54.3 3.52 3386 100.0 64000 11877 1.226 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT *C ~approximation 103.0 56.3 3.65 3362 98.8 64000 11902 1.209 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 99.3 58.0 3.76 3359 100.0 64000 11235 1.224 !DANGEROUS LOAD-DO NOT USE!
Rottweil R905 100.9 53.8 3.48 3358 99.6 64000 11696 1.224 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209 96.3 51.4 3.33 3347 100.0 64000 11305 1.212 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 *C 96.8 51.9 3.37 3344 100.0 64000 11356 1.220 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-16 *C *T 92.4 48.3 3.13 3340 100.0 64000 10600 1.216 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 97.5 52.3 3.39 3337 100.0 64000 11275 1.221 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 518 93.1 51.6 3.34 3332 100.0 64000 10970 1.227 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-23 *C *T 101.8 53.5 3.46 3328 100.0 64000 10633 1.237 !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter 92.4 51.2 3.32 3327 100.0 64000 10877 1.228 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 SC *T 98.1 53.2 3.45 3324 99.4 64000 11328 1.218 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 *T 102.0 53.2 3.45

 

[remingtonman_25_06]

Hey thanks Gun Nut! I appreciate that. Looks like I was right in there with my RL26 prediction for the 105s. Fingers crossed my 10" will stabilize them!!

 

[frankm]

My 10 twist 24" Vanguard stabilizes the 105 AMax fine. Have shot Steel to 800 with it.

I was running 52.5 grs of R22 and getting 3150 fps. Thought what the heck and tried R26. 53.5 grs gets me 3250 fps and haven't tried to go any higher. Shoots sub MOA and figured 3250 is pretty good for a 24" barrel. I m at 3.335 OAL; .020 off the lands.

Share your results. That 8 twist of Fotis s s/b the Cats Meow.

 

[Gun nut]

Your welcome. Spot on Rem ‘06.
Great info frankm. Thanks for sharing. Waiting for cooler weather in Iowa to try out some loads in my 240s.
Looking forward to Fotis’s results too. Thinking he has a really neat rifle. The 7 1/2 twist is very interesting!!

 

[remingtonman_25_06]

Found the lands with my rifle and the 105g HPBT is around 3.345" so I loaded up 3 rounds at 55g RL26 at 3.340" I'll shoot them at 300 yards in the next day or 2 and see if they're stabilizing. I'll also cronograph them to see what the QL prediction and velocity/pressure is like. My rifle only has a 24" tube so I'm expecting around the 3300fps mark.

 

[FOTIS]

Be careful with that rl 26. I found it very inconsistent as far as lot to lot variations.

I blew a primer at 55gr with the 100 gr PT! Had to go down 3 gr after that!

 

[FOTIS]

....... That 8 twist of Fotis s s/b the Cats Meow.

7.5 twist! :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen:

 

[frankm]

Remington, +1 to Fotis; be careful. I think 55 might be over the top.

Might load 1 or 2 at 53 ish and try first! Don't forget your shooting glasses and let us know your results.