ofbandg
Well-Known Member
Another vote for the .338 Federal. Case has taper so it feeds and extracts well, lots of bullet options from 160 to 250 grain, and beyond, and is very efficient at achieving velocity without great quantities of powder.
-what action is this build on? How do your switch barrels?
I think the 338 version of the SS is about 74.5-75 grainsI was thinking about the .338 Federal too like oldschool280. I have two and have shot most bullets in the lower end including the 210 Scirocco. Can anyone share the h20 capacity of the Sherman vs. the federal? I'm assuming the Sherman is more efficient...How about the 338RCM water too.
338 federal easy pick,better yet,375 raptor, 260 accubonds,2850 ft lbs@ 100yds,1200 ft lbs @600,18"in a ar10,308 brass.Use a common long ,medium or short action.Common margazines. Build a remage or savage,screw it on yourself.Form common brass yourself.Bolt gun would gain a bit more with higer pressures, loosing gas bleed off and 20" barrel.Cheap,short, powerful,best of all reason,...do it yourself