Range report after Mossberg fixed my 930 SPX
I made a post on 10-25-2012 about problems I was having with my SPX and described changes Mossberg made to the gun.
I finally had a chance to shoot last weekend. I shot about 600 birdshot, 50 slugs and about 30 OO buckshot over two days. I had two FTE. I had one spectacular type-three malfunction, where an empty shell was in the chamber, another round was behind it, and the brass part of a third round was poking into the receiver. I scratched my head about that one – it was a new one on me. One of the guys who has an AR told me that one time he had three and later four rounds jammed into the receiver at the same time – the type-three malfunction from hell. He said he had to dig them out with his knife. All in all, I didn't have more problems than the guys I was shooting with, who were running pump guns. Guns are mechanical devices and they will never be failproof.
I cleaned the gun between days. I discovered a couple of things. First off, the new magazine spring Mossberg installed is only 22 & 3/8th inches long. I never measured the original spring, but it was way longer. Also, it is tapered on one end; the original spring was symmetrical. Secondly, Mossberg oiled the gun much more than I had been doing. My method was to oil it and then wipe most of the oil off. Mossberg left everything wet. Really wet.
So, kudos to Mossberg for making it right. I do wish they would put more effort into making sure the guns leave the factory in good working order so there would not be so many problems with some new guns.