New Berger 25cal 135gn LRHT

[sierracharlie338]

They finally joined the 25 caliber party. What are y'all's thoughts?

 

[Creedmoor shooter]

As much as I dont like the 25s, not gonna lie thats an awesome projectile. Id like to see a hunting version though as the lrht line has pointed meplats. May be time to build my self the 25-06 that I've always had a secret affair with. Probably because I grew up shooting one.

 

[Dmagna]

Man I just ordered a new barrel for my .257 weatherby. But I guess it's okay, not really a hunting bullet.

 

[VLD Pilot]

Well it's been a while but it finally arrived. And...Heavier than I thought it'd be. Pretty fair numbers for that bullet as well.

 

[sierracharlie338]

I'm curious to see some real world performance thats for sure. The blackjacks have set the bar pretty high.

 

[West Calamus]

what twist rate would one need for these? 1-8 ? What would be the ideal case? Could a 257 weatherby get it up to 2900 fps?

 

[VLD Pilot]

what twist rate would one need for these? 1-8 ? What would be the ideal case? Could a 257 weatherby get it up to 2900 fps?

Well at 2900 and roughly 1000' elevation with an 8 twist barrel, you'd be right at bullet stability. 1.5 is your number. Guessing your 257 Wby mag will push that bullet closer to 3300 in at least a 24" barrel. It becomes 1.56 at 3300 fps. Altitude is your friend unless you speed up the barrel twist

 

[VLD Pilot]

I'm waiting on a 7.5 barrel for my 25-284 build. I'm right around 1000 ft ASL. Looking at around 3100-3150 fps. The 257 Why mag is much faster but speed alone won't help the stability issue much. A little altitude or and half inch faster twist will do wonders.

 

[West Calamus]

Well at 2900 and roughly sea level with an 8 twist barrel, you'd be right at bullet stability. 1.5 is your number. Guessing your 257 Wby mag will push that bullet closer to 3300 in at least a 24" barrel.

So a 1-7.5 would probably be ideal. My 25-06 usually pushes 120 gr at 2950 so would the 06 push the beger at maybe around 2800 to 2850fps

 

[VLD Pilot]

So a 1-7.5 would probably be ideal. My 25-06 usually pushes 120 gr at 2950 so would the 06 push the beger at maybe around 2800 to 2850fps

2950 is super conservative for a 120. A 7.5 is perfect for the 06 cartridge with the 131 or new Berger. You'll easily get 3000+ with the 135

 

[West Calamus]

2950 is super conservative for a 120. A 7.5 is perfect for the 06 cartridge with the 131 or new Berger. You'll easily get 3000+ with the 135

let me guess you use RL powder. Out of 24 inch barrel my 25-06 with max charge of 50.2 of IMR4831 only does 2950 fps with 120 gr speers.

 

[VLD Pilot]

let me guess you use RL powder. Out of 24 inch barrel my 25-06 with max charge of 50.2 of IMR4831 only does 2950 fps with 120 gr speers.

I personally do not but RL26 is what I'm quoting. I use it in some cartridges but not many. It's a great option but H4831 is also

 

[BEEMAN]

VLD pilot you are dead on with your velocity hopes with the 25-284. I'm getting 3151 FPS with the 131 BJ out of a 26" Helix6 1-7-25" twist. I agree the 25-06 should be running a 120 way faster than that. My 25-06AI used to shoot 115 Berger's at 3350 FPS with H1000. I would refer to Blackjacks site as they recommend varying twist rates for certain cartridges. I would error on the faster twist than the slower twist.

 

[VLD Pilot]

VLD pilot you are dead on with your velocity hopes with the 25-284. I'm getting 3151 FPS with the 131 BJ out of a 26" Helix6 1-7-25" twist. I agree the 25-06 should be running a 120 way faster than that. My 25-06AI used to shoot 115 Berger's at 3350 FPS with H1000. I would refer to Blackjacks site as they recommend varying twist rates for certain cartridges. I would error on the faster twist than the slower twist.

My barrel order was for a finished 24". Tried to change it but it was too late. It's gonna arrive at 25" as a Bartlein Carbon wrapped model. I think I can keep it at 25" without removing any length unlike an all steel barrel. There trimmed down to use pretty much at full length. That's why I figured a bit slower than a 26-28" barrel pushing the 131s.