mudpack wrote:I bought a walnut-stocked 20ga. SX3 several months ago. It shoots well, but double-feeds about every tenth shot..
Think I found the problem. The magazine spring is 3 times longer than the tube it fits in. This is far longer than any other magazine gun I own. For instance, the mag spring in my 20ga BPS is only 18" long; 1.5X the length of the magazine. The SX3 is 31" long. I cut 8" off the long spring and reassembled it.
Went pigeon hunting last Wednesday, fired 104 rounds and had not one double feed. It fed the last shells in the magazine just fine, as well. I'm hoping that cures the problem for good.