Hi guys I am looking at building a rifle in 500 s&w, most barrels seem to be very fast 18 or 19, a BMG is only a bit quicker at 15 some of those are even 20!
Firstly why such a fast twist?
Secondly I am looking to shoot bullet of between 375 (0.84") and 430 (0.96") grain, even the most conservative calculators predict a 32 to stabilize those bullets and some say you might be able to push it to 38, but that a 36 does it okay!
I would rather not twist my cast bullets anymore than necessary, and I think in a rifle pushing those bullets to 1500fps and keeping pressure down should be easy enough. The 19 twist standard gives you a SG of between 5 and 9?
I can get a 25 or 36 twist barrel, the 25 should just about stabilize anything up to 1.4"-1.5" (640-680 grains) by which time you are probably running out of coal in the 500. Why does the 500 come with a twist that in theory can stabilize a 900 grainer if the case were of course big enough?
Ideally I think a 30 twist would be the go, I am not sure if anyone offers that rate?
Even a relatively quick 44 mag often comes with a 20 twist?
If anyone has a 500 S&W I would be very interested to hear from them!
Firstly why such a fast twist?
Secondly I am looking to shoot bullet of between 375 (0.84") and 430 (0.96") grain, even the most conservative calculators predict a 32 to stabilize those bullets and some say you might be able to push it to 38, but that a 36 does it okay!
I would rather not twist my cast bullets anymore than necessary, and I think in a rifle pushing those bullets to 1500fps and keeping pressure down should be easy enough. The 19 twist standard gives you a SG of between 5 and 9?
I can get a 25 or 36 twist barrel, the 25 should just about stabilize anything up to 1.4"-1.5" (640-680 grains) by which time you are probably running out of coal in the 500. Why does the 500 come with a twist that in theory can stabilize a 900 grainer if the case were of course big enough?
Ideally I think a 30 twist would be the go, I am not sure if anyone offers that rate?
Even a relatively quick 44 mag often comes with a 20 twist?
If anyone has a 500 S&W I would be very interested to hear from them!
