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Old June 7, 2000, 02:11 PM   #2
Dave McC
Staff In Memoriam
 
Join Date: October 13, 1999
Location: Columbia, Md, USA
Posts: 8,811
Doc, the most common reason I've found for inaccuracy in shotguns using slugs is slop in the barrel/receiver fit. Every year I get asked to "take a look" at someone's shotgun and some of them rattle when shaken.

Assuming you have a repeater, try this.....
MAKE SURE IT'S EMPTY and...
Grasp the weapon at the grip like you were going to shoot and grab the bbl forward of the forearm. If the bbl can be moved while the receiver is immobilized, you need to tighten this up.

I use a padded set of channelocks on the mag tube nut to take it one,repeat,ONE click past hand tight. This is for 870s.

Mossbergs can get a shim of aluminum foil, business card, or matchbook cover to take the slop out,if there's not any turns left to tighten.

If'n you're not using a pump or auto, there's other problems, but I'd wager a flagon of mead we just diagnosed the problem correctly rat cheer.
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