.25 cal 131g .330G7 bullet from Blackjack Bullets for you to drool on ...

[jasonco]

Here is a chart I saved some time ago. I don't remember where I got it and don't know if it is accurate.

Good info, but does this factor in what type of barrel material and/or type of rifling...just making muddier water

 

[jasonco]

I'm gonna need new barrels real quick like for my 28 Nosler and 300 RUM, according to the Powder/Barrel chart

 

[flyinstroke]

What kind of powder have you guys been using with a 25-06AI. Mine should be done in about 2 months and trying to piece together the rest of the supplies for it. It is a 7 twist so it should stabilize the 131, correct me if I am wrong. Thanks in advance!

 

[86alaskan]

use a good slow burning magnum powder. I use IMR8133 and H1000 in my 25-06. Retumbo or RL26 would also be excellent choices. With the 7 twist you'll be fine, maybe on the edge of spinning too fast if you really lean on the AI. Sounds like a good LR build

 

[jasonco]

flyinstroke, what elevation are you typically using, for a 1-7 twist?

 

[MudRunner2005]

What kind of powder have you guys been using with a 25-06AI. Mine should be done in about 2 months and trying to piece together the rest of the supplies for it. It is a 7 twist so it should stabilize the 131, correct me if I am wrong. Thanks in advance!

7828 SSC, 7977, H1000

 

[newmexkid]

I would try RL26 first...If you can find it. We all buy what we want but...Why did you order a 1:7?

 

[257 Blackjack]

What kind of powder have you guys been using with a 25-06AI. Mine should be done in about 2 months and trying to piece together the rest of the supplies for it. It is a 7 twist so it should stabilize the 131, correct me if I am wrong. Thanks in advance!

1:7" is indeed fast but it will work.

I prefer Retumbo as #1 in 25-06 in my testing.

3170 - 3225 fps in 26.5" (Lapua Brass) so the AI should add a bit more.

Even at 3175 - 3225 fps, it's nothing to mess around with.

I will do the AI next time when this barrel is toast. I have 360 rounds on it so far.

 

[flyinstroke]

flyinstroke, what elevation are you typically using, for a 1-7 twist?

View attachment 141589

I will be shooting at or below 200ft I am near the Gulf Coast of Texas

1:7" is indeed fast but it will work.

I prefer Retumbo as #1 in 25-06 in my testing.

3170 - 3225 fps in 26.5" (Lapua Brass) so the AI should add a bit more.

Even at 3175 - 3225 fps, it's nothing to mess around with.

I will do the AI next time when this barrel is toast. I have 360 rounds on it so far.

The local gun shop has some Retumbo. I was considering it or H1000. The 1000 and RL 26 have been hard to find. Looks like Retumbo it is

 

[jasonco]

I will be shooting at or below 200ft I am near the Gulf Coast of Texas



The local gun shop has some Retumbo. I was considering it or H1000. The 1000 and RL 26 have been hard to find. Looks like Retumbo it is

Trade you an 8# of H4350 for a 8# of Retumbo!

The Great Retumbo Shortage of 2019

 

[flyinstroke]

Trade you an 8# of H4350 for a 8# of Retumbo!

The Great Retumbo Shortage of 2019

I already have plenty of H4350. I bought the last 2lbs of Retumbo they had!

 

[jasonco]

 

[Longtooth32]

I'll list common accuracy speeds and then (top end fps) but by no means have we seen bullet failure / unwrapped.

- 25 BR 2760 & 2820 (top end unknown), Lapua Brass
- 25 GT - Waiting on Reamer
- 25x47 2880, 2920, 2970 (accuracy at 2970 - did not test to pressure), Lapua Bras
- 25 Creed 2940, 2970, 3040 fps (hot at 3040-3070 fps) Most cut blanks access 2970 fps node. , Lapua Bras
- 25x284 3140, 3211 (warm at 3211), Lapua Bras
- 25-06 3140, 3225 (ran up to 3270 with ejector marks, not recommended), Lapua 30-06 Bras
- 257 BLACKJACK - Waiting on Testing
- 25 SAUM 3320 in 24-25", 3380+ in 30", Hornady Brass
- 257 WBY 3420 has been reported for accuracy. Not sure of top end.


Even in the middle of these windows the 25 caliber version of the 6.5 parent will out perform them in Wind, Drop, and Energy.

We have reamers for all of the above except 25 BR and 25-06. 25 BRA reamers coming soon.

Are you using stock Wby freebore on the 257 Wby chambers? If not...what is the length of your recommended throat?

Thanks...

 

[highdrum]

Wonder when they're going to release their hunting bullet?!