Testing Rocky Mtn cases in NEF.Got 1850 fps with 125 gr AA 1680 and 132gr of RE-7. Cases are 2.9 after 3 firings. AA 1680 load had .135 card wad and 2 1/2 in lubed felt wads, and RE-7 load had same card and a 1/2 and a 1/4 lubed wad. Re-7 less dense. Base expansion ahead of thick base was .002 to .003 and resized without huge effort. The base is .300 thick, case has shotgun primers. By the way I put primers in with bmg primer post. Works good. Next we cut back some cases for the 87 levergun.About same loads used in NEF minus wads worked. I also felt now that having found loads that get velocity without a huge expansion to the turned cases(that can't take pressures like our cases built from bmg brass), that good low base plastic would do the same velocity, in strong alloy barreled guns, so I tested plastic with 600 gr slugs, the last 3 days along with turned cases, and a good result. Plastic does as good as turned case loads in NEf and 1887. Like 120 gr Re-7 in 87 gets 1700 in plastic case. If it had long heavy barrel you could get over 2000. The plastic will get all the potential that NEF and 1887 can deliver with RE-7 type loads. And plastic is a 100 times more available.And with regular primers so gun doesn't have to be worked over for big primers.Ed
