S&W SW40E jamming problem solved

by Bob Hatfield , Monday, October 19, 2015, 18:49 (3262 days ago)

Hello Guys

A few weeks ago I posted about this Sigma style S&W jamming by the cartridge taking a nose dive several times each mag. Two new Wolff magazine springs fixed it. I've ran a hundred rounds through both mags and the jamming has ceased. Too simple for sure.

I have a similar problem with a Star BM only if it chambers from racking the slide it will fire every time. If I load 8 in the Star BM mag and rack the slide the first cartridge takes a nosedive under the feed ramp. This jam requires removing the magazine. The Sigma stoppage only required me to pull the slide back and let it slam the cartridge into the chamber.

If I load 7 in the Star magazine the first round chambers OK and all will feed. This is with ball ammo of course. Load 8 and the first one nose dives. I thought maybe the mag springs are in back asswards but they weren't. The BM really shoots sweet but Wolff doesn't make magazine springs. I wonder if 1911 9mm Commander mag spring could be fashioned to work?

Bob