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Destructo6 · June 13, 2014, 09:14 AM

I have the JM Pro 8 shot.

I had problems with it cycling full power slugs (1600fps). It would fire, extract, and eject fine, but the round in the magazine tube would fail to release onto the lifter.

Went back to Mossberg/Maverick Arms twice, with just a little improvement.

Started shooting reduced recoil slugs and has cycled all of those without a hitch.

It has always cycled birdshot perfectly.

I probably have 800-1000 rounds through it now.

I have 2 friends with the exact same model that have had no problems of any kind.

June 13, 2014, 09:14 AM	#5
Destructo6 Senior Member Join Date: March 18, 1999 Location: Nogales, AZ USA Posts: 4,000	I have the JM Pro 8 shot. I had problems with it cycling full power slugs (1600fps). It would fire, extract, and eject fine, but the round in the magazine tube would fail to release onto the lifter. Went back to Mossberg/Maverick Arms twice, with just a little improvement. Started shooting reduced recoil slugs and has cycled all of those without a hitch. It has always cycled birdshot perfectly. I probably have 800-1000 rounds through it now. I have 2 friends with the exact same model that have had no problems of any kind. __________________ God gave you a soul. Your parents, a body. Your country, a rifle. Keep all of them clean.