Quickload for RL26 110 AB 25-06

[bob_dobalina]

Hi all, Could I bother anyone to do a QuickLoad for

Reloder 26
110 AccuBond
25-06 Tikka T3X
22.4" barrell

 

[DrMike]

Cartridge          : .25-06 Rem.
Bullet             : .257, 110, Nosler AccuBond 53742
Useable Case Capaci: 60.236 grain H2O = 3.911 cm³
Cartridge O.A.L. L6: 3.250 inch = 82.55 mm
Barrel Length      : 22.4 inch = 569.0 mm
Powder             : Alliant Reloder-26

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% 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

-10.0   90    53.91   2918    2080   43872  13850     98.8    1.260
-09.0   91    54.51   2955    2132   45552  13971     99.1    1.238
-08.0   92    55.11   2991    2185   47304  14081     99.4    1.216
-07.0   93    55.71   3027    2238   49132  14181     99.6    1.195
-06.0   94    56.31   3063    2291   51039  14269     99.8    1.174
-05.0   95    56.91   3099    2345   53031  14347     99.9    1.154
-04.0   96    57.50   3134    2399   55110  14414    100.0    1.134
-03.0   97    58.10   3170    2454   57279  14469    100.0    1.114  ! Near Maximum !
-02.0   98    58.70   3205    2509   59530  14517    100.0    1.095  ! Near Maximum !
-01.0   99    59.30   3240    2564   61866  14564    100.0    1.076  ! Near Maximum !
+00.0  100    59.90   3275    2619   64296  14610    100.0    1.057  ! Near Maximum !
+01.0  101    60.50   3309    2675   66825  14655    100.0    1.039  !DANGEROUS LOAD-DO NOT USE!
+02.0  102    61.10   3344    2731   69459  14698    100.0    1.021  !DANGEROUS LOAD-DO NOT USE!
+03.0  103    61.70   3378    2787   72202  14739    100.0    1.004  !DANGEROUS LOAD-DO NOT USE!
+04.0  104    62.30   3412    2844   75061  14779    100.0    0.987  !DANGEROUS LOAD-DO NOT USE!
+05.0  105    62.90   3446    2901   78040  14818    100.0    0.970  !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    100    59.90   3424    2863   80639  14015    100.0    0.965  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    100    59.90   3046    2266   49383  14951     97.5    1.182

 

[bob_dobalina]

Thanks DrMike!

 

[bob_dobalina]

I have a couple questions, but more about using QuickLoad data in general.

I believe SAAMI max PSI is 62,000 for the 25-06, yet I often see QL say "Near Maximum" over SAAMI pressure - is this just a setting for max PSI, and I'm sure I should just stick with not going over 62,000 no matter what QL says?

Along those same lines, do you have a rule of thumb for what you pick as your target max load from the data? Of course you would stop increasing powder at any sign of pressure while shooting, but before you even go to the range, you get a "plan" and load up progressive loads - how would you pick your max load you want to try out of this data? The reason I ask is I only pushed a 100gr with RL 26 to 58 or 58.5 grains.

Thanks for any insight.

 

[SJB358]

Bob, the 25-06 is a 65K PSI SAAMI round so that’s why you see the data that high.

With 26 or any powder I use my Chrono to keep me under the FPS listed in order to stay below overmax pressures.

As for starting loads, I like to start at where the round would be useful to me. So, with the 110 AB I’d probably not do anything serious until I was in the 3000-3050 range and know anything above that would be gravy.

 

[bob_dobalina]

Thanks Scott, I'm hoping to hit and find good accuracy around 3100fps with my 22.4" barrel.

 

[SJB358]

Thanks Scott, I'm hoping to hit and find good accuracy around 3100fps with my 22.4" barrel.

I wouldn’t suspect you’d have any issues Bob. 26 is amazing in my with 100 grain Swift Sciroccos. Right at 3400...

 

[bob_dobalina]

Pretty accurate prediction!

 

[bob_dobalina]

My primers started getting a little flat around 3110 fos yesterday. I was running low on my current jug of RL 26 so thought I'd transition to my new one, shot a couple low loads with the Chrono to get a baseline and it was like 15 fps slower so looking real good. But then I went to shot groups and the primers were pretty flat on the lower range (but grouped really well), I'm guessing around 2950+. So now I don't know what to think. It was a little warmer today -70F, 50s yesterday.

 

[joelkdouglas]

Just my opinion, I've read lots of info over the years about how reading primers isn't a reliable method of determining pressure. Different types or lots of primers, different firing pins, etc. As a result I pretty much ignore the primers now. My first "reliable" sign of pressure is high velocity on the chrono; if I see a velocity higher than the book I assume the pressure is higher. And if I get to heavy bolt lift or an ejection mark those are pretty clear signs.

 

[bob_dobalina]

Just my opinion, I've read lots of info over the years about how reading primers isn't a reliable method of determining pressure. Different types or lots of primers, different firing pins, etc. As a result I pretty much ignore the primers now. My first "reliable" sign of pressure is high velocity on the chrono; if I see a velocity higher than the book I assume the pressure is higher. And if I get to heavy bolt lift or an ejection mark those are pretty clear signs.

Thanks, Joel - I always read your username as "Joe Elk Douglas". I might just work up to my planned velocity a little slower with the new powder can. It was a 2 grain jump to my next set is why I held off. On the primer note, do you think RL26 would be better served with a different primer in the 25-06? I'm using WLRs.

 

[SJB358]

Just my opinion, I've read lots of info over the years about how reading primers isn't a reliable method of determining pressure. Different types or lots of primers, different firing pins, etc. As a result I pretty much ignore the primers now. My first "reliable" sign of pressure is high velocity on the chrono; if I see a velocity higher than the book I assume the pressure is higher. And if I get to heavy bolt lift or an ejection mark those are pretty clear signs.

Thanks, Joel - I always read your username as "Joe Elk Douglas". I might just work up to my planned velocity a little slower with the new powder can. It was a 2 grain jump to my next set is why I held off. On the primer note, do you think RL26 would be better served with a different primer in the 25-06? I'm using WLRs.

I am using standard CCIBR2's with my 25-06 loads. Haven't seen a reason to try anything else.

 

[joelkdouglas]

Funny about Joe Elk! Bill our elk camp “seasoned” rep said the same. Nope, Joel K.

I can’t say about either the WLRs or Scotty’s BR2s. I haven’t used either of them in the 25-06. Of course you could always try the CCI250s if you can find 100 of them nearby. Might help, could be worse.

I did note in my 30-06 CCI250s gave me higher velocity than GM215Ms with RL26 at the same charge amount. I wouldn’t have much confidence they would always do that though.

Are you seeing pressure signs with your loads? My barrel is 24 inches so maybe a little more velocity potential, but I got to 3400 fps without noticeable pressure signs. I would think with a 22 inch barrel that 3100 fps would be within reach safely.


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[joelkdouglas]

Just re-read your post. You are reading flat primers as possible pressure signs. Could be right, like I said I ignore primer signs.

Anyway, CCI250s might make a difference, in that I’ve read CCI primers have harder cups than other primers. So the primers might present different signs.




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[SJB358]

Just re-read your post. You are reading flat primers as possible pressure signs. Could be right, like I said I ignore primer signs.

Anyway, CCI250s might make a difference, in that I’ve read CCI primers have harder cups than other primers. So the primers might present different signs.




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I tried 250’s in my 25-06 load and did net a little more speed but accuracy fell a bit, so I’m back at the BR2’s. I’ve seen 250’s become a hotter primer than 215M’s in the past 10 years or so, or at least in velocity over a few of my rifles.

 

[joelkdouglas]

Do CCI200s and BR2s have the same hard cups? I would assume so but not sure.


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[SJB358]

Do CCI200s and BR2s have the same hard cups? I would assume so but not sure.


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I think so Joel. I’ve really only used CCI’s for most of my stuff for years. Got some 215M’s to try with the Mash and 338 a few times but always stuck with CCI mostly.