Taio Posted February 27, 2004 Share Posted February 27, 2004 The original recoil spring for the Sig 220 (and Browning BDA) was 15 lbs. Unless I am mistaken, the bulk of the excellent reliabilty reputation was formed during these years. In the 1990s, the recoil spring was increased to 20 lbs to help with the more popular +P loads. This stronger recoil spring has always seem stiff to me, especially compared with my Colt 1911 and it's 16 pound spring. What I have found with the 20 lb spring is that when using full power, 230 grain bullets, it has very fast slide velocity. If my mags are starting to get dirty (near the end of a shoot), or if I have a spring that is getting a little weaker, I will get a failure of the slide to lock open, or even pass over a round in the magazine. With my mid range reloads, the slide is a little slower, giving the rounds in the magazine to get in proper position. My question (sorry to took too long to get to it) is this: Will an 18 lb spring give my slide a little more "dwell" time in its rear position, and be more forgiving on my magazines and bullet position. 18 lbs is less than factory, but still 3 lbs heavier than the original 15 pound spring, so I would think I would not have any increased wear on the Sig. What do you think? Quote Link to comment Share on other sites More sharing options...
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