3djedi Posted February 13, 2014 Share Posted February 13, 2014 Ok, so I'm trying .40 minor ammo on my stock STi Eagle and it works but with only one problem. On the last round the slide doesn't lock back. Does it need a lighter recoil spring? If so, what do you recommend? Quote Link to comment Share on other sites More sharing options...
donnyglock Posted February 13, 2014 Share Posted February 13, 2014 With minor loads you want a lighter recoil spring. Try a 10lb spring Quote Link to comment Share on other sites More sharing options...
Mike21STI Posted February 13, 2014 Share Posted February 13, 2014 How old are the magazines? If the springs are older they may need to be replaced Quote Link to comment Share on other sites More sharing options...
CHARLES D Posted February 13, 2014 Share Posted February 13, 2014 I have a 12lb spring in my Eagle. Able to shoot minor rounds with no problems. Mike is right about the springs. Quote Link to comment Share on other sites More sharing options...
3djedi Posted February 13, 2014 Author Share Posted February 13, 2014 Mags are pretty darn new.... Quote Link to comment Share on other sites More sharing options...
v1911 Posted February 13, 2014 Share Posted February 13, 2014 +1 on the lighter spring. Get yourself a spring tuning kit and see what works best for your load. Quote Link to comment Share on other sites More sharing options...
poortrader Posted February 13, 2014 Share Posted February 13, 2014 Does your follower allow the last round to lock back? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
3djedi Posted February 14, 2014 Author Share Posted February 14, 2014 Yes, it locks back with regular .40 commercial factory rounds. It's only the .40 minor that it doesn't lock back. I've only tried 25 rounds through it. I think tomorrow I will try some regular and some of the minor just to confirm..... Quote Link to comment Share on other sites More sharing options...
3djedi Posted February 14, 2014 Author Share Posted February 14, 2014 You guys were right. The problem is the magazine. That particular mag won't lock slide with .40 major or the minor. Quote Link to comment Share on other sites More sharing options...
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