R-26

[AFG270]

2850 from a 160/270......22" barrel....

26 is awesome in my 270/7mm WSM, and a bunch of others. I've been working with it quite a lot in my 6.5 Swede and 140's and so far it's looking really good.

I would be very interested in any data you have for the 7WSM and RE26.

Charlie, I don't have much, other than 140 Partitions shoot like crazy in my rifle.







There are pretty danged quick as well.

Excellent shooting, Scotty. Yeah, that looks like a great all-around load at that speed.

 

[grry10]

Has anyone tried RE-26 with 140gr in a 6.5-06 Ackley?

 

[SJB358]

I think Dewey may have but I'm not positive. It should be awesome.

 

[Dwh7271]

Has anyone tried RE-26 with 140gr in a 6.5-06 Ackley?

Yes I have.
26" barrel with a fairly long throat.
59 gr was right around 3100. There was still a little room evidently but the accuracy showed right at 58.4 or so which was 3050 with a SD of around 15 if I recall.
26 is some good stuff and really versatile.

 

[truck driver]

How would it work in a 338Wm or is it too slow?

 

[DrMike]

I imagine it would work, Rodger. It is not at all too slow. What weight bullet would you be thinking of using?

 

[truck driver]

I only have 200gr Abs and 210gr PTs but trying to get the 210s tuned in which I have several hundred of on hand. So far I have a load with RL17 but it is erratic but fast, RL 19 seems to give the best accuracy and seems to be more stable but need to find the sweet spot with it. I would like a good 225gr load also but can't find any 225gr ABs and what 225gr PTs that are available are bring premium prices and I need some seconds to work up loads with so I can hold the cost down. If I had a load already developed cost wouldn't be a question. Waiting on Nosler to run some more so I can get some seconds.

 

[DrMike]

Cartridge          : .338 Win Mag.
Bullet             : .338, 225, Nosler AccuBond 54357
Useable Case Capaci: 72.491 grain H2O = 4.707 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-26

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   87    62.80   2277    2590   28511   9011     91.2    1.611
-18.0   90    64.37   2343    2743   30660   9321     92.8    1.564
-16.0   92    65.94   2410    2903   32995   9611     94.3    1.517
-14.0   94    67.51   2478    3068   35535   9881     95.6    1.471
-12.0   96    69.08   2546    3238   38300  10126     96.8    1.423
-10.0   98    70.65   2614    3413   41316  10346     97.8    1.372
-08.0  101    72.22   2682    3593   44616  10536     98.6    1.324
-06.0  103    73.79   2750    3778   48228  10696     99.2    1.276
-04.0  105    75.36   2818    3966   52192  10824     99.7    1.231
-02.0  107    76.93   2885    4159   56551  10917     99.9    1.187  ! Near Maximum !
+00.0  109    78.50   2952    4355   61358  10974    100.0    1.145  ! Near Maximum !
+02.0  111    80.07   3019    4554   66671  11012    100.0    1.104  !DANGEROUS LOAD-DO NOT USE!
+04.0  114    81.64   3086    4757   72569  11043    100.0    1.064  !DANGEROUS LOAD-DO NOT USE!
+06.0  116    83.21   3152    4963   79134  11069    100.0    1.026  !DANGEROUS LOAD-DO NOT USE!
+08.0  118    84.78   3218    5174   86468  11087    100.0    0.989  !DANGEROUS LOAD-DO NOT USE!
+10.0  120    86.35   3284    5389   94696  11097    100.0    0.953  !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    109    78.50   3096    4789   78225  10387    100.0    1.045  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    109    78.50   2730    3724   47923  11138     95.9    1.277

Cartridge          : .338 Win Mag.
Bullet             : .338, 210, Nosler PART SP 16337
Useable Case Capaci: 77.827 grain H2O = 5.053 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-26

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   87    66.96   2367    2613   28546   9531     90.6    1.561
-18.0   89    68.63   2437    2769   30701   9869     92.2    1.515
-16.0   91    70.31   2507    2932   33042  10188     93.8    1.470
-14.0   93    71.98   2578    3100   35588  10483     95.2    1.426
-12.0   96    73.66   2649    3273   38360  10755     96.4    1.379
-10.0   98    75.33   2721    3452   41381  10998     97.4    1.330
-08.0  100    77.00   2792    3636   44686  11211     98.3    1.283
-06.0  102    78.68   2864    3824   48303  11391     99.0    1.237
-04.0  104    80.35   2935    4017   52269  11537     99.5    1.193
-02.0  106    82.03   3006    4214   56626  11646     99.9    1.150  ! Near Maximum !
+00.0  109    83.70   3077    4415   61430  11716    100.0    1.109  ! Near Maximum !
+02.0  111    85.37   3147    4619   66736  11758    100.0    1.069  !DANGEROUS LOAD-DO NOT USE!
+04.0  113    87.05   3217    4826   72616  11793    100.0    1.030  !DANGEROUS LOAD-DO NOT USE!
+06.0  115    88.72   3287    5037   79152  11821    100.0    0.993  !DANGEROUS LOAD-DO NOT USE!
+08.0  117    90.40   3356    5252   86445  11842    100.0    0.957  !DANGEROUS LOAD-DO NOT USE!
+10.0  119    92.07   3425    5471   94613  11854    100.0    0.922  !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    109    83.70   3230    4865   78372  11104    100.0    1.011  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    109    83.70   2842    3766   47938  11819     95.6    1.237

Cartridge          : .338 Win Mag.
Bullet             : .338, 200, Nosler Accubond 56382
Useable Case Capaci: 74.992 grain H2O = 4.869 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-26

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   89    66.16   2384    2524   28137   9109     88.4    1.538
-18.0   91    67.81   2456    2679   30293   9455     90.3    1.492
-16.0   93    69.47   2529    2841   32640   9784     92.0    1.447
-14.0   96    71.12   2603    3009   35199  10092     93.6    1.403
-12.0   98    72.78   2677    3183   37993  10377     95.0    1.357
-10.0  100    74.43   2752    3364   41051  10636     96.3    1.307
-08.0  102    76.08   2827    3550   44404  10866     97.4    1.260
-06.0  105    77.74   2903    3741   48087  11064     98.3    1.213
-04.0  107    79.39   2978    3938   52142  11228     99.0    1.169
-02.0  109    81.05   3053    4140   56619  11355     99.5    1.125  ! Near Maximum !
+00.0  111    82.70   3129    4347   61579  11443     99.9    1.084  ! Near Maximum !
+02.0  114    84.35   3204    4557   67088  11491    100.0    1.043  !DANGEROUS LOAD-DO NOT USE!
+04.0  116    86.01   3278    4772   73230  11508    100.0    1.004  !DANGEROUS LOAD-DO NOT USE!
+06.0  118    87.66   3352    4991   80102  11518    100.0    0.967  !DANGEROUS LOAD-DO NOT USE!
+08.0  120    89.32   3426    5214   87830  11519    100.0    0.930  !DANGEROUS LOAD-DO NOT USE!
+10.0  122    90.97   3501    5442   96558  11511    100.0    0.895  !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    111    82.70   3295    4823   78270  10822    100.0    0.988  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    111    82.70   2877    3675   48241  11373     94.2    1.211

 

[SJB358]

I ran 26 with 225's in my 338. It was FAST, right on Mikes projections but I never got the accuracy I did with 17 and 19. It might be really good with 250's as well.

2950 with a 225 is very serious stuff.

 

[truck driver]

Yeah that is getting them down range. I might have to get another drop tube extension to get 80grs+ in a case, a 4" drop may not be enough.

 

[DrMike]

It'll fit, Rodger. I consider 114% to be heavily compressed. A glass rob gently tapping the case works wonders at settling the kernels.

 

[truck driver]

I wonder if a glass Rob is a criminal offense. :roll: :lol: :wink: I just could help myself DrMike. I did manage to get 3# of R-19 with the same lot number so I can have some extra once I get my load developed with 210PTs. It will be something to keep in the back of my mind when I can get some 225s.

 

[DrMike]

Why not a "glass rob." You'll discover that he has a glass jaw. Don't hit him too hard.

 

[truck driver]

Tinkle Tinkle Tinkle crash :shock: :roll: :lol: :wink:

 

[SJB358]

This is about where I stopped with RL26, 225 PT's and my 338.. It showed some promise.








The charges Mike showed are probably a touch high, or at least they are in my program. I was actually able to use a little less to get max speeds.

It looked really good with 250's. I'd forgotten I had tried it with those.

 

[truck driver]

I realize each barrel is different and likes the bullet seated at different lengths but was wondering what your OAL was off the Ogive for partitions and if they respond the same as Accubonds by seating them deeper or should you get closer to the lands with them? Right now I'm .020" off the lands if my measurements are right.

 

[SJB358]

I usually start at .010" with cup and cores (Partitions fall into that group). I will do all of my initial load work at that depth with powder charges. Once I find the charge I want to use I will push them back .005-.010 at a time trying to bring them together.

The old rule of thumb seems to work for me, 2-1 seat deeper, nice even triangles get seated closer to the lands. I figure if I start at .010 or max mag length I only have one way to go.

 

[truck driver]

Thanks for the info. I tried the book suggested OAL and that didn't work . Maybe I'm seating them too deep. I did find the sweet spot for the ABs fairly easy.