270 win 140gr accubond loads

mcseal2

Handloader
Nov 1, 2010
723
4
Just curious if anyone had any pet loads they would like to share, starting load work on a 22" barrelled Ruger with a 1 in 10 twist tomorrow. Load development is slow in this heat, so I figured I'd ask. I have a pair of turrets for my Leupold CDS built for the 270WSM built around the 140gr AccuBond at 3033fps. I'm not sure I will get enough velocity to use them from the standard 270 with a 22" barrel, but will set up the chronograph just in case.

What powders would you recommend starting with to get top velocity from a 22" barrel? From the looking I did in my books I'm thinking of H100V, H4831, and H1000 to start. I also have RL22 and H and IMR4350, and IMR4831 on the shelf. The RL powders have seemed more temperature sensitive for me in the past so I'm going to hold off on them for now. I'm going for accuracy rather than speed, but I'll take all the speed I can get with accuracy and consistent velocity within safety limits. With a high of 95 tomorrow I'll keep starting loads light.
 

RiverRider

Handloader
Dec 9, 2008
1,395
0
I don't shoot .270, but I shoot .280 and they're awfully similar.

Just looking over the list of powders you've mentioned I'd have though H1000 would be just the ticket, but I ran QuickLOAD on it and it looks like you wouldn't be able to get enough of it in the case to get anywhere near the velocity you want. I'm like you and would want to go with a powder that won't bring on velocity variations with temperature changes. I've found H4831SC to be THE powder for .280 when loading 150-grain Partitions and I suspect you'd get comparable results in your .270 with 140s. Based on the results QL gave me, I think you should be able to get close to 3000 fps without pushing too hard, maybe in the neighborhood of 2950 fps but that's based on some default values input to the program. Even if you come up short velocity-wise, your custom turrets should be pretty close for ranges not exceeding some reasonable yardage. If you're wanting to shoot 800 or 1000 yards, though, maybe another powder like Re22 would work if you can deal with the temp sensitivity. It's really too bad Alliant hasn't done something to make Re22 more temperature tolerant, it really is a great powder otherwise.
 

6mm Remington

Ammo Smith
Feb 27, 2006
5,074
28
mcseal2 I don't load the 140 gr. in the 270, but I load for a buddy with the 130 gr. Partition. I worked up my load with H4831SC and Federal 215 magnum match primers. He gets 3030 fps and really good accuracy out of his Remington Mountain rifle. I already had the load and it worked great, but I played with IMR4350 and Federal 210 match primers and it worked equally as well or seemed to have as much potential as H4831SC. I think those two powders and H4350 as well as IMR4831 both would be very good.

Good shooting!
David
 

hubcap

Handloader
Nov 21, 2006
624
0
mcseal2":o0fsz4p2 said:
Just curious if anyone had any pet loads they would like to share, starting load work on a 22" barrelled Ruger with a 1 in 10 twist tomorrow. Load development is slow in this heat, so I figured I'd ask. I have a pair of turrets for my Leupold CDS built for the 270WSM built around the 140gr AccuBond at 3033fps. I'm not sure I will get enough velocity to use them from the standard 270 with a 22" barrel, but will set up the chronograph just in case.

What powders would you recommend starting with to get top velocity from a 22" barrel? From the looking I did in my books I'm thinking of H100V, H4831, and H1000 to start. I also have RL22 and H and IMR4350, and IMR4831 on the shelf. The RL powders have seemed more temperature sensitive for me in the past so I'm going to hold off on them for now. I'm going for accuracy rather than speed, but I'll take all the speed I can get with accuracy and consistent velocity within safety limits. With a high of 95 tomorrow I'll keep starting loads light.

From your list I would start with IMR-4831. Hard to beat in a 22 inch barrel.
 

SJB358

Ballistician
Dec 24, 2006
31,254
419
H4831 or RL22.. Maybe some others like H1000 or IMR7828 if you can get enough in the case. I shoot alot of RL22 in the WSM, works for me from 0-600, Winter or Summer.. I think 2950+ should be doable in your 270 MC. Shouldn't be out of the realm of possibility at all.

Code:
Cartridge          : .270 Win. (SAAMI)
Bullet             : .277, 140, Nosler AccuBond 54765
Useable Case Capaci: 59.393 grain H2O = 3.856 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 22.0 inch = 558.8 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 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 !

139 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                          106.5     60.9     3.94    3105    99.5    65000   14071   1.039  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560                    108.3     60.6     3.93    3092    97.0    65000   14263   1.037  !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO                    108.5     63.1     4.09    3079    95.5    65000   14270   1.042  !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum                     110.0     64.5     4.18    3075    97.7    64462   13973   1.033  !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC                       106.6     60.0     3.89    3074    97.4    65000   13794   1.029  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22                 108.5     60.1     3.89    3071    98.6    65000   13787   1.042  !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15                       108.5     60.1     3.89    3071    98.6    65000   13787   1.042  !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation       108.5     60.1     3.89    3071    98.6    65000   13787   1.042  !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12                  110.0     64.3     4.17    3065    97.7    63815   13917   1.038  ! Near Maximum !
PB Clermont PCL 517                110.0     64.3     4.17    3059    97.5    63436   13920   1.041  ! Near Maximum !
ADI AR 2213                        107.5     59.5     3.86    3057    97.2    65000   13641   1.029  !DANGEROUS LOAD-DO NOT USE!
Rottweil R905                      109.6     59.6     3.86    3032    96.9    65000   13352   1.043  !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209                        104.5     56.9     3.69    3027    98.4    65000   13036   1.034  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19                 105.1     57.5     3.73    3025    98.4    65000   13121   1.041  !DANGEROUS LOAD-DO NOT USE!
Winchester WXR                     110.0     59.6     3.86    3025    98.0    61929   13655   1.065  ! Near Maximum !
Ramshot Hunter                     100.6     56.9     3.68    3024    99.8    65000   12795   1.047  !DANGEROUS LOAD-DO NOT USE!
Winchester 760                      95.0     55.0     3.56    3021    99.5    65000   12827   1.049  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414                        95.0     55.0     3.56    3021    99.5    65000   12827   1.049  !DANGEROUS LOAD-DO NOT USE!
Somchem S365                       102.4     55.8     3.61    3019   100.0    65000   11916   1.055  !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation         105.8     57.9     3.75    3018    98.4    65000   13023   1.042  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17                  92.7     53.3     3.45    3018   100.0    65000   12089   1.036  !DANGEROUS LOAD-DO NOT USE!
Norma URP                          100.1     54.2     3.51    3005   100.0    65000   12276   1.053  !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation         100.2     54.2     3.51    3005   100.0    65000   12273   1.053  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550                     97.3     54.4     3.53    3004   100.0    65000   12423   1.057  !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation          102.9     56.3     3.65    3001    98.2    65000   12766   1.042  !DANGEROUS LOAD-DO NOT USE!
Norma 204                           99.6     56.3     3.65    3001    98.2    65000   12766   1.042  !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4                        102.9     56.3     3.65    3001    98.2    65000   12766   1.042  !DANGEROUS LOAD-DO NOT USE!
Accurate 4350                      103.8     54.3     3.52    3000   100.0    65000   12245   1.069  !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214                        110.0     62.5     4.05    2999    96.8    62147   13307   1.049  ! Near Maximum !
Hodgdon H4831 SC                   106.1     58.7     3.81    2995    96.6    65000   12836   1.039  !DANGEROUS LOAD-DO NOT USE!
Somchem S385                       105.3     58.3     3.78    2989    99.1    65000   12571   1.060  !DANGEROUS LOAD-DO NOT USE!
IMR 7828                           110.0     58.5     3.79    2988    96.3    59425   13501   1.072  ! Near Maximum !
IMR 4831                           105.0     55.1     3.57    2987   100.0    65000   12013   1.061  !DANGEROUS LOAD-DO NOT USE!
Ramshot BigGame                     93.5     52.9     3.43    2985   100.0    65000   11832   1.052  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831                      110.0     58.5     3.79    2984    96.4    64200   12796   1.044  ! Near Maximum !
SNPE Vectan SP 11                   93.6     52.9     3.43    2984   100.0    65000   11816   1.052  !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT ~approximation       110.0     61.4     3.98    2980    94.5    62552   13198   1.051  ! Near Maximum !
Bofors RP4 NT ~approximation       100.4     55.8     3.62    2979    99.3    65000   12355   1.054  !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780             103.3     59.6     3.87    2975    98.3    65000   12417   1.046  !DANGEROUS LOAD-DO NOT USE!
IMR 4895                            90.4     49.5     3.21    2974   100.0    65000   11725   1.058  !DANGEROUS LOAD-DO NOT USE!
Rottweil R904                      103.7     56.0     3.63    2969    97.4    65000   12418   1.044  !DANGEROUS LOAD-DO NOT USE!
Bofors RP11 ~approximation          91.2     50.0     3.24    2968   100.0    65000   11692   1.058  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-15                  91.2     50.0     3.24    2968   100.0    65000   11692   1.058  !DANGEROUS LOAD-DO NOT USE!
Raufoss RA11                        91.2     50.0     3.24    2968   100.0    65000   11692   1.058  !DANGEROUS LOAD-DO NOT USE!
Hodgdon Hybrid 100V                102.8     54.4     3.53    2965   100.0    65000   11316   1.053  !DANGEROUS LOAD-DO NOT USE!
Lovex S070                          99.7     54.0     3.50    2965    99.5    65000   12168   1.062  !DANGEROUS LOAD-DO NOT USE!
Norma 203B                          91.6     50.2     3.25    2964   100.0    65000   11594   1.059  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350                      102.5     54.9     3.56    2964    99.0    65000   12119   1.047  !DANGEROUS LOAD-DO NOT USE!
IMR 4350                           100.6     54.8     3.55    2963    99.1    65000   12097   1.047  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25                 110.0     59.9     3.88    2962    99.6    55543   13350   1.109  ! Near Maximum !
Hodgdon H380                        92.5     51.7     3.35    2962   100.0    65000   11852   1.061  !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 NT ~approximation        94.5     52.2     3.38    2959    99.6    65000   11803   1.036  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165                    110.0     59.6     3.86    2954    98.6    63658   12198   1.060  ! Near Maximum !
IMR 4320                            93.2     50.2     3.25    2952   100.0    65000   11276   1.045  !DANGEROUS LOAD-DO NOT USE!
Norma 203 old                       92.8     51.4     3.33    2951   100.0    65000   11404   1.072  !DANGEROUS LOAD-DO NOT USE!
Rottweil R903                       94.9     51.4     3.33    2947   100.0    65000   11317   1.072  !DANGEROUS LOAD-DO NOT USE!
Rottweil R907                       97.4     52.3     3.39    2944    99.1    65000   11949   1.056  !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC                        94.4     52.4     3.39    2943    99.1    65000   11940   1.056  !DANGEROUS LOAD-DO NOT USE!
Somchem S355                        95.1     51.0     3.30    2943   100.0    65000   11327   1.065  !DANGEROUS LOAD-DO NOT USE!
Lovex S065                          98.6     52.8     3.42    2943    99.9    65000   11732   1.062  !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 NT ~approximation        96.2     52.3     3.39    2936    99.9    65000   11502   1.047  !DANGEROUS LOAD-DO NOT USE!
Hodgdon VARGET                      94.1     49.9     3.23    2935   100.0    65000   11287   1.048  !DANGEROUS LOAD-DO NOT USE!
ADI AR 2208                         93.8     49.9     3.23    2935   100.0    65000   11287   1.048  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160                    110.0     57.7     3.74    2935    97.1    63842   12124   1.056  ! Near Maximum !
Somchem S361                       102.4     59.7     3.87    2934    96.5    65000   12131   1.055  !DANGEROUS LOAD-DO NOT USE!
IMR 4064                            94.7     49.0     3.17    2927   100.0    65000   11081   1.052  !DANGEROUS LOAD-DO NOT USE!
Lovex S062                          92.3     49.2     3.19    2918   100.0    65000   10901   1.066  !DANGEROUS LOAD-DO NOT USE!
IMR 3031                            90.5     46.3     3.00    2915   100.0    65000   10513   1.065  !DANGEROUS LOAD-DO NOT USE!
Accurate 4064                       96.7     49.5     3.21    2907   100.0    65000   10710   1.092  !DANGEROUS LOAD-DO NOT USE!
Rottweil R902                       91.3     48.2     3.12    2902   100.0    65000   10724   1.068  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N150                    100.2     51.8     3.35    2900   100.0    65000   10655   1.065  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N540                     91.1     50.4     3.27    2897   100.0    65000   10657   1.064  !DANGEROUS LOAD-DO NOT USE!
Accurate 2700                       95.4     53.9     3.50    2896    98.9    65000   11276   1.059  !DANGEROUS LOAD-DO NOT USE!
 

jmad_81

Handloader
Feb 14, 2007
2,937
0
RL-19 has worked for me with every 140 gr bullet I have ever shot out of a 270 WCF.
 

mcseal2

Handloader
Nov 1, 2010
723
4
Thanks for the replys. I will post results as I get them, maybe starting tonight.
 

Oldtrader3

Ammo Smith
Nov 6, 2009
8,406
1
You could go with 58.0 grains of IMR 7828 SSC and a Fed 215 Mag Mat primer. That will get you close at slightly <3000 but is a hot load.

I my .270 Model 70, with 24 inches of barrel, I can barely get 3040 fps with 55.0 grains of MR4350 and a Match primer which is maximum in my rifle and very accurate. I have never been convinced any of the 75 deer that I have killed with this combination that a 140 grain would make much difference, at least to these deer. For something bigger, maybe?
 

vodekzz

Beginner
Mar 20, 2012
85
0
For me H 4831 sc with G215M Federal Mag Primers and 58gr for 140 AB. This is accuracy load from 22 imch barrel. About 2850 FPS but almost in the same hole at 100 yards.
R-22 did not work for me with the same bullet. Velocity load? H1000 with the same mag primers in the winter and max load from Hodgdon manual. 3000 fps and accurate. It is hot load!!!
Great bullet.
vodekz
 

mcseal2

Handloader
Nov 1, 2010
723
4
I was at Cabelas yesterday picking up a few things and got a box of Hornady Superformance 140gr SST factory loads to try. Their velocity on the box shows to be 3090fps from a 24" so I figured I might get my 3000+ from a 22" barrel. I shot 6 getting sighted in, cleaning after every shot to break the barrel in. Early results aren't real promising, but I will shoot some actual groups before making a final judgment. I got it dialed in now anyway so I can start shooting for accuracy with a cold barrel. I still won't know to much until I get past the first 10 rounds and start cleaning every 3 shots instead of every shot. I've got H4831SC on the shelf also so I think I'll give that and H1000 a try first off if the factory loads continue to be erratic.
 

dlove

Beginner
Feb 23, 2012
115
0
the superformance loads are smokin fast. the 130gr shoot at 3167 in my 22" .270 win. sometimes they shoot great - sometimes not so great. average groups in my rifle are around 2".

I gave up on the 140gr in my 22" .270. after following the advice of the guys on this board I got the 130gr BT shooting .6" groups at 3065fps. H4831 just wont push the 140gr in my rifle. I was able to get great groups but they were all with light loads under 2800fps.
 

remingtonman_25_06

Handloader
Nov 17, 2005
2,639
3
I used H4831sc and RL22 with great results in both accuracy/speed from a 22" rem 700.

I was getting 3000fps and 1/2 moa. Worked pretty good out to 800...
 

Wincheringen

Handloader
Jan 10, 2012
931
0
I load H4831SC in my brother's Ruger .270 with the 140 AB. I use RP brass and a Rem 9 1/2 primer. It did very well with the max load in Nosler #6, although it wasn't quite as fast as they claimed. This particular rifle has shot every bullet I've tried in it pretty well, so we just picked the best one for all around use.
 

Oldtrader3

Ammo Smith
Nov 6, 2009
8,406
1
I have never attained the published velocities as shown in Nosler #6 Manual. Some of the loads have been quite acceptable but I have had in almost all cases had to use a little more powder than they recommended.
 

mcseal2

Handloader
Nov 1, 2010
723
4
Well I got some more range work done tonight. I was very pleased with the results, especially considering my bench is a picnic table outside my house. Using the Superformance factory load I put 10 of them through cleaning every shot over the last 2 nights, then shot two 3 shot groups cleaning after every 3rd shot. It didn't agree with this rifle. In the process I did find that the rifle will start throwing shots high and right from a hot barrel. The light barrel really needs a slow 3 shot group to show what it will do, the 4th shot was consistently jumping an inch high and half an inch right. After 16 rounds of factory ammo I left the rifle to cool and headed to the loading bench. I started by loading 2 cases with 56gr and 2 cases with 57gr of H4831SC topped with 140gr accubonds. Neither showed any pressure so I stepped up to the max load from the Nosler book of 58gr and loaded 3. These shot well and still showed no pressure in the 87 degree heat. I ended up shooting 3 groups of 3 shots each cleaning and letting the rifle cool between groups with the 58gr load. Measuring the groups outer edge to outer edge of furthest holes and subtracting the .277 bullet diameter I got groups of .568, .541, and .813 inches. A mouse chewed up the cord on my chronograph so I'm not sure of the speed. The book shows the load reaching 3000fps from a 24" barrel, but I've found many of the shown velocities higher than my results and I have 2" less barrel. Needless to say I'm pretty pleased with the results from a rifle weighing a little over 6lbs and costing $360. I may not be getting the velocity I wanted but I'll have new turrets built if necessary to keep this accuracy. I'll have to get the chronograph working to see where I'm at and if I need to experiment further. The new Ruger American may not be pretty, but it will shoot. I'll post a more thorough review in the rifles section.
 

6mm Remington

Ammo Smith
Feb 27, 2006
5,074
28
Sounds like a nice rifle. I don't think Ruger gets the credit they deserve. They do build some stout reliable firearms.
David
 

hubcap

Handloader
Nov 21, 2006
624
0
mcseal; Are planning on loading three with some IMR-4831? 56 grains will get 2900 with 140 AB,s or BT,s with a 22 inch barrel. My chrony records show under 2800 with 58 grains of H4831. Hope ya get your chrony working so ya know your speeds.
 

SJB358

Ballistician
Dec 24, 2006
31,254
419
That is a great review MC. Thank you for the update. Can't beat that kinda accuracy for the price and the weight of the rifle lends itself to a whole lot of carrying as well.
 

CatskillCrawler

Handloader
Jul 30, 2011
1,205
1
I also use 58.0g of H-4831 in my 22" barrel with the 140gr ABs. Accuracy has been exceptional but velocity has always been a challenge. I've made peace with this load now and am content with 2870fps.

I will try some RL-22 this month though just because... :wink:
 
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