Dewberry Posted March 31, 2015 Share Posted March 31, 2015 Im shooting a M&P 9mm full size. Im about to start reloading 9mm for 3 gun at about 130 power factor, do I need to change to a reduced weight recoil spring? will be using xtreme 147 hp if it matters Link to comment Share on other sites More sharing options...
Bkreutz Posted March 31, 2015 Share Posted March 31, 2015 Im shooting a M&P 9mm full size. Im about to start reloading 9mm for 3 gun at about 130 power factor, do I need to change to a reduced weight recoil spring? will be using xtreme 147 hp if it matters No, I use stock recoil springs and I load my 124's to 136PF. The only time I mess with springs is when I tried a comp (not good on minor loads). Major loads are a different story. Link to comment Share on other sites More sharing options...
MGMorden Posted April 7, 2015 Share Posted April 7, 2015 My 9L wasn't reliable even with a 14lb Wolff spring (it would fail to return to battery ever 50-75 rounds). I ended up going back to factory weight. Link to comment Share on other sites More sharing options...
ryan45kim Posted April 7, 2015 Share Posted April 7, 2015 Factory spring is 16lb, I run an ISMI 15lb but I think practice would be of more benefit then the spring change. Any lower in spring weight and I could move the slide by pulling the trigger, not much but it would happen. I would just stick with factory. Link to comment Share on other sites More sharing options...
Dewberry Posted April 7, 2015 Author Share Posted April 7, 2015 Thanks for the input guys, I think im going to stick with factory Link to comment Share on other sites More sharing options...
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