I do not beleive Chamber mates are made with a 3 inch chamber
In fact I know of no reducer made in 12 guage 3 inch mag.

The tungston matrix shot will exit the 12 gauge protective wad and rub directly on the barrels.

Your gun, I will not do it in my NID

I know it is expensive but RST loads 10 gauge 2 7/8 inch non-tox loads. Nice Shot is what they use.

Look at the very bottom of this link

http://www.rstshells.com/rst_classic_shotshells_shotshells.htm

Mike


Last edited by skeettx; 10/05/11 11:14 PM.
USAF RET 1971-95 [Linked Image from jpgbox.com]