Shooting 12 gauge in a 10 gauge

[OH Osthaus]

a 12 gauge shell is going to barely catch on the rim of a 10 ga chamber

IF the firing pin is long enough to set it off - the explosion is going to slam that back into the breach face as it expands to fill the void left by the difference in diameter

so now a split and over stretched hull head is going to be jammed up between the extractor and breech face- i expect it will be difficult to open after that

firing just a primer will not prove any thing

please do not use a good gun-

IMHO - dangerous and foolish

i just hope this was a joke -

i have erased several comments about intelligence and seeing this on you tube