25-06AI 135g Berger Load Data

[jblanchrd]

I haven't seen much discussion on this so figured I'd share my results so far. I have only tested two powders H1K/Retumbo. Best Results so far has been H1K as the Retumbo did not net the speed or accuracy of H1K. With H1K I started at 57g and ended at 59G in 1g increments. 59g showed slight ejector marks. 57g was just over 3000fps with 59g just over 3200fps.
Retumbo was slower, I started with 58g and ended with 60g in 1g increments. 60g netted me 3130 with no pressure signs.
I then loaded H1K in .2g increments 58.2g-58.8g. 58.2g was 3130fps avg/58.4g was 3150fps avg/58.6g 3160fps avg/58.8g was 3180fps avg with an ES=9/SD=4.5. All Speeds recorded via Labradar. Both the 58.6g/58.8g shot in the .4s.
Cal = 2506AI
Action = Tikka
Barrel = Mcgowen 26" SF Sendero Contour 1-7" Twist, Seekins Muzzle Brake
Optic = Leupold MK5HD 5-25X56
Stock = Oryx Chassis
COAL= 3.90

 

[FEENIX]

I haven't seen much discussion on this so figured I'd share my results so far. I have only tested two powders H1K/Retumbo. Best Results so far has been H1K as the Retumbo did not net the speed or accuracy of H1K. With H1K I started at 57g and ended at 59G in 1g increments. 59g showed slight ejector marks. 57g was just over 3000fps with 59g just over 3200fps.
Retumbo was slower, I started with 58g and ended with 60g in 1g increments. 60g netted me 3130 with no pressure signs.
I then loaded H1K in .2g increments 58.2g-58.8g. 58.2g was 3130fps avg/58.4g was 3150fps avg/58.6g 3160fps avg/58.8g was 3180fps avg with an ES=9/SD=4.5. All Speeds recorded via Labradar. Both the 58.6g/58.8g shot in the .4s.
Cal = 2506AI
Action = Tikka
Barrel = Mcgowen 26" SF Sendero Contour 1-7" Twist, Seekins Muzzle Brake
Optic = Leupold MK5HD 5-25X56
Stock = Oryx Chassis
COAL= 3.90

View attachment 400799View attachment 400813View attachment 400801View attachment 400802

@lancetkenyon

 

[lancetkenyon]

Pretty good results.
Have you thought about trying RL23? It has been my go-to in 25-06AI, 6.5-06AI, and .280AI.

 

[Darryle]

Here is what Berger sent me when I inquired about the 25-280 Ackley

They said I could universally interchange starting load data between the 25'06 Ackley and the 25-280 Ackley

It appears that they are conservative on their results based on your experiences.

Thanks for the information.

 

[jblanchrd]

Pretty good results.
Have you thought about trying RL23? It has been my go-to in 25-06AI, 6.5-06AI, and .280AI.N

No I haven't yet but I will give it a go this weekend. Gonna try N570 as well.

 

[lancetkenyon]

No I haven't yet but I will give it a go this weekend. Gonna try N570 as well.

N570 is really bulky and very slow burning. Let me know how it works, as it is not one that I have considered for that case.

 

[jblanchrd]

I ended up with a load of 59g of H1k. Shoots 135s @ 3210FPS/.4" and under. Both of these bucks were shot at 350yds with this load and dropped where they stood. No exit and insides were jello.

 

[cbuck516]

I have a 25-06AI with 26" 1-7" and did a 10 shot ladder with N570 and Berger 135gr. There was a nice flat spot right around 3200fps in my rifle. I have very little N570 left so I haven't shot any groups yet.

Did you mean COAL of 3.390"? 3.9" doesn't even allow the case to touch the bullet. I was loading mine around 3.38" so I assume that was just a typo

I haven't seen much discussion on this so figured I'd share my results so far. I have only tested two powders H1K/Retumbo. Best Results so far has been H1K as the Retumbo did not net the speed or accuracy of H1K. With H1K I started at 57g and ended at 59G in 1g increments. 59g showed slight ejector marks. 57g was just over 3000fps with 59g just over 3200fps.
Retumbo was slower, I started with 58g and ended with 60g in 1g increments. 60g netted me 3130 with no pressure signs.
I then loaded H1K in .2g increments 58.2g-58.8g. 58.2g was 3130fps avg/58.4g was 3150fps avg/58.6g 3160fps avg/58.8g was 3180fps avg with an ES=9/SD=4.5. All Speeds recorded via Labradar. Both the 58.6g/58.8g shot in the .4s.
Cal = 2506AI
Action = Tikka
Barrel = Mcgowen 26" SF Sendero Contour 1-7" Twist, Seekins Muzzle Brake
Optic = Leupold MK5HD 5-25X56
Stock = Oryx Chassis
COAL= 3.90

View attachment 400799View attachment 400813View attachment 400801View attachment 400802

 

[jblanchrd]

Yes that was typo...I'll have to go back and measure as I haven't loaded or shot the rifle since last hunting season.