Those very good crimps on the Niceshot loads . My guess is they are closed using a spinning head finish die that looks similar to a roll crimper. Much the same as most european loads are crimped.
I shot 30 or so of the Niceshot factory loads this season , (that were crimped the same way), out my SweetSixteen and did not have that problem.
Not sure why the hull mouths were torn so badly , but as stated may be due to short chambers.
Call RST and ask them.
|