I am also interested in the 257 Blazer. Already got 100 pcs of brass waiting. My 6.5 Max got in the way!
257 Build?
- Thread starter ColtyJr
- Start date
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lancetkenyon
Well-Known Member
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For best barrel life, good performance, brass that'll last forever, I think a 25prc with adg/Lapua brass would be best. 160 freebore to keep bearing surface in the neck when ran 35k off lands(this seating depth has shot the most consistent in 4 different chambers with 131 aces). The magnum case head, loaded to say 3080-3100fps feom a 24-26" barrel will be in a middle node and be low pressure.
The 25sst looks the best on paper, 71gr powder, short coal, run easily in 2.95" action, adg brass, but unproven results for me so far.
My saum was a ripper running 3220-3250fps w/ rl26. This load wasn't that hot either, but Prairie dog towns got the best of me and I got it a bit TOO hot on more than one occasion.
The 25sst looks the best on paper, 71gr powder, short coal, run easily in 2.95" action, adg brass, but unproven results for me so far.
My saum was a ripper running 3220-3250fps w/ rl26. This load wasn't that hot either, but Prairie dog towns got the best of me and I got it a bit TOO hot on more than one occasion.
I will, Mike at hells canyon is ALMOST done. Kelbly atlas tactical LA, TT diamond, Hawkins M5 oberndorf, cfe12 box, 28" hells canyon 7.75tw barrel, SRS ti brake, jcs composites adjustable tactical stock. Should be a screamer! I won't sell the reamer but I'd rent it to your smith for a small fee!
Gstew1930
Well-Known Member
I'm planning on building a 25 wssm with some extra freebore for the new Berger's & a 17" barrel. It might not be practical but I think it would be pretty cool. Nice and light and capable of reaching out there a little
Please keep us posted. Is yours going to be the 257 Blackbird chambering?
Yes 257 blackbird aka 25 blaser.
ColtyJr
Well-Known Member
Decided on the 25 Creedmoor now just trying to decide whether to get small rifle or large rifle primer brass?
I like small. The peterson brass is good stuff. If alpha does ocd it'll prob be the best option. I use lapua SRP necked down to 25 in another rifle and it's arguably the best, but spendy and pita having to size down.
The 240 gibbs you mentioned caught my attention. I'm going to be shooting a 6mm prc in a month or so. I'm sure that 240 gibbs will have a good couple hundred fps advantage on my rig. Gotta be lightning fast!
It is, and accurate as well. A fun gun to shoot, and an interesting caliber too.
Petersen
Well-Known Member
Kind of related, Anyone know any gunsmiths currently chambering the 25-284 for the larger bullets? I know blackjack sells reamers but interested if a known smith is already set up, thanks.
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Randy Gray in Adairsville,GA has my reamer. Made me a fine rifle. 404 569 6070.
