Re: 450B Aftermarket barrels???
Posted: Fri Nov 11, 2011 10:38 pm
atomicjoe23 wrote:l will definitely keep you guys posted. . .
. . .this is what I asked for from Satern: 16" 416R SS barrel threaded for a brake (told them I didn't know if it was supposed to be 5/8"-24 or 11/16"-24 thread, but that I would find out), bead blasted (an option they offer) and that the Bushmaster barrel were a 1-in-24" twist (don't know if that's the best, just know that's what Bushmaster uses).
Maybe you guys could help me out with the brake threading (which one is right), the barrel diameter under the handguard, and the barrel diameter at the gas block. . .as this is info I haven't been able to nail down 100%. I know the .50 Beowulf barrels are 0.980" under the handguard and 0.906" at the gas block, but I don't know if the 450 Bushmaster uses the same size barrel or not.
If you guys that have 450's could help me out it could possibly help us out in the long run.
Thanks!
For sure, if you want to mimic the Bushmaster barrel, they use 11/16-24 for the brake. IIRC, the faux gas block part of the barrel is .750. I know because I used it on my 6.5 Grendel build. I can not reach the carbine gas block part of the barrel to measure it without removing the FFT, but looking through the vents in front of the mag well, it looks like the barrel is .980, but I don't know if it is that diameter at the block. They usually put the blocks just ahead of a step-up in diameter. Sorry I don't have more precise dimensions from my 20" barrel.
Hoot