Confused over a double-feed
It's been over 20 years since my last double-feed. Yesterday it happened with a new Wilson Combat E.T.M. magazine. Previously I had tested the is magazine with lighter loads, finding it to work 100% like my other Wilsons. Yesterday I tested with Federal 230 Gr. Hydra-Shok rounds which have a significantly heavier recoil. That's when the double-feed occurred.
Previously I read on this forum about how double-feeds are caused by a weak magazine spring. Back at home I used my trigger scale to weigh the strength of the magazine spring in this and some other of my magazines. The readings from this new magazine were in-line with other recently purchased magazines.
The pistol in use was a Colt 1991A1 that I've owned for 27 1/2 years. It has a long history of working great with this Federal ammunition.
Experience shows there are people in this web group who know a lot more than I do. I look forward to reading and learning to gain some insight into just what went wrong.
i sold all my handguns. . . . . . . . . . except for the 1911 style pistols in .45 ACP.
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