Originally Posted By: coyotesmokeI am planning on going with an 18" barrel because I will be shooting it suppressed. With only 27 to 30 gr of powder is the longer barrel really needed? Also is necking down the brass done in two or three passes?
This was designed as a high velocity round equivalent to the 22-250. To get there we wanted no less than 22". Even short though it leaves the other 22's in the dirt.
Three passes with bushings. CH4D makes a regular rie that would be a bit faster but I would still do it in two. I kind of cheat.az I have a 6.5,25, 243 and 22 versions so I step down and start with 200 cases doing 50 at each step so I don't notice the bushing changes. Since the brass lasts forever loading sainly I don't mind the work.
Greg