I was looking at buying a heavy barrel chambered in 22-250 for a mauser action. Midway has heavy barrel/laminate stock combo that has a 1:8 twist barrel. Isn't this a little too much rotation for a 4000 fps bullet with a thin jacket for varminting?! The way I have it figured, velocity would have to be kept way low. The other thought I have is that this barrel is made to stabilize the 60-70 gr .223 bullets. What do you all think?