Looking foreward to that report, Nitro.

Interesting about the roll crimps. When I use round balls, I've had no such problem, but then, I used folded or semi-folded (cone shaped) crimps with once fired plastic hulls.

I have just loaded up a whack of Lyman's slugs in the red 'field' wad, with 34gr. of SR4756 and CCI 209's, folded crimp for my Mossy rifled barrel. This was one of the loads listed in the handloader magazine - at 1,450fps, approximately. The Lyman slugs I have weigh 506gr. in WW alloy.

I have some others to try in/with wads as well - 580gr. from a homemade .687" mould as well as .690" 730gr. 'Original' US military Minnie from a Lyman mould. Both are in pure lead. The mould I bored, can cast up to 1,200gr. weight - much more than I want to shoot.

One aspect of using undersized slugs or round balls, is the total absence of leading. At times, it can be difficult to remove.

A "Kurly Kate" or "Curly Kate" pot scrubber made of copper strands, almost like lathe turnings is a good method of removing leading from rifled as well as smooth bores. There is a stainless 'ball' for cleaning pots that I wouldn't use. The copper scrubbers will not hurt the bore of either smooth nor rifle. Simply snip a 'strand' of copper from the 'ball' and pull them out, then wrap the 'strands' around a wire brush, then wet with a powder solvent and stroke. The lead comes out quickly and easily with the copper strands with those sharp edges cutting it better than steel wool - even from rifles as noted.