Quote:
Originally posted by widgeon13
Why would steel shot be an issue? Just curious myself.
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The barrel steel can't handle shot that's not soft. Virtually all shotguns these days are hard chromed inside the barrels to prevent steel shot abrasion.
The other issue, paper vs. plastic shells might be about the shell crimping method. All shells used to have a roll crimp that held in a flat cardboard disc. When fired the roll crimp straightened out, but didn't increase the length of the shell much, maybe 3/16ths of an inch or so. Star crimps, both paper and plastic, lengthen much more when fired, I haven't measured this increase but it's probably at least 3/8ths inch or more. The front of the chamber on the old shotguns is set up for the shorter roll crimp and may not tolerate the longer star crimped shells well, if at all.
Just a guess though, a good gunsmith, one that works with shotguns a lot, can fill you in better than I can.