The advantage of the Beggs is just necking down the Russian case which is fairly straight forward IF I'm not mistaken . Problem is finding a smith w/reamer as it's not that well known ,then finding dies and loading info. WHO & WHERE ? Also is it worth it over the 20 ppc? Would be shooting bullets in the 32 - 40 grn. range so 1-11" ? IF 50 grns. became available then 1-9" ?