25 sst

[Coldfinger]

So how's the turnout on the 25sst going? I'm thinking of rebarrel if a FN SPR short action. Anyone wanting to share info? What's the best barrel length? Twist rate for heavy bullets? I want it to be a useable hunting rifle so the lighter the better. Can bullets be seated deep enough to contact rifling and feed out of mag box?

 

[IanCo]

25sst finally breaking it in

Finally got a chance to break in my 25 SST. Just going to start with 55 grains of H1000 to break in new brass. Shot once cleaned shot once cleaned and then 3 shots at 100 to zero. Here they are. Not a bad start. Gonna be a really fun gun to shoot.

www.longrangehunting.com

A lot of good info in this thread.

 

[couesaddict]

I think most of them have been built on 26" barrels. I went with 24 on mine simply because I wanted it a little handier. Lost a little speed but it's still a respectable 3230 with the blackjacks. If they're the bullet you want to shoot then a 7.5 twist is probably about ideal. If you want to shoot the 128 hammers, they recommend a 7 twist which I'm sure will work for the blackjacks as well. My 25sst has become my favorite rifle for what it's worth.

 

[Coldfinger]

I think most of them have been built on 26" barrels. I went with 24 on mine simply because I wanted it a little handier. Lost a little speed but it's still a respectable 3230 with the blackjacks. If they're the bullet you want to shoot then a 7.5 twist is probably about ideal. If you want to shoot the 128 hammers, they recommend a 7 twist which I'm sure will work for the blackjacks as well. My 25sst has become my favorite rifle for what it's worth.

Are you running the BJ's through a short action? I'm thinking of rebarrel if an FN CRF action that's a 270wsm now.

 

[lancetkenyon]

My 25SST sports a 26" 1:7.5" Proof Sendero. I am running the 131 BJ too, at 3238fps suppressed with a moderate charge of H1000. I got 3360+ before I ran out of case space, but no pressure signs. the 131 BJ fits in an Accurate mag with room to spare. I am jumping mine .023".

I have heard that Berger is working on a .257" heavy, maybe a 130 Hyb, and Hornady is working on a 135 A Tip. So building a new fast twist .257 makes even more sense with those additions. I hope Sierra follows suite too. A 130 SMK or SGK would be awesome.

 

[couesaddict]

Yes I'm running accurate mags as well. If I recall, my coal is around 2.850-2.860. I'm away at work or I'd double check. Definitely under 2.9" to touch the lands. I'd say if you're thinking of building on a rifle chambered in a wsm it's a great candidate.

 

[Coldfinger]

My 25SST sports a 26" 1:7.5" Proof Sendero. I am running the 131 BJ too, at 3238fps suppressed with a moderate charge of H1000. I got 3360+ before I ran out of case space, but no pressure signs. the 131 BJ fits in an Accurate mag with room to spare. I am jumping mine .023".

I have heard that Berger is working on a .257" heavy, maybe a 130 Hyb, and Hornady is working on a 135 A Tip. So building a new fast twist .257 makes even more sense with those additions. I hope Sierra follows suite too. A 130 SMK or SGK would be awesome.

Lol it'd be simpler to just have the BJ 131's in production. By the time I get to it I'll have too many choices!!! I sure wish I'd stumbled on Mr Sherman's site years ago, he makes most cartridges seem boring!!

 

[highdrum]

My gunsmith still has mine. Been waiting on the Terminus bottom metal since early April. Build is a Terminus Apollo lite ti, proof 26" 7.5tw sendero, TT diamond, jcs composites tactical with manners adj cheek piece. Still waiting on my flush fit M5 bottom metal from Joel @ terminus. Barrel hasn't sped up yet but the Smith has found half moa loads with H1000 131bj @ 3210 fps.