mastergunner Posted January 29, 2018 Share Posted January 29, 2018 I would like some suggestions from the forum on spring weights for my M&P CORE 5" barrel 40cal. I believe the stock weight is 16lbs. I am shooting USPSA and hand load using 180gn bullet loading for Major PF. Please provide websites to suggested springs. Thanks. Link to comment Share on other sites More sharing options...
BlueBulletBeaker Posted January 31, 2018 Share Posted January 31, 2018 I put a stainless full length guide rod and 13# in my 9mm. I imagine the next one up which is 15# would be just right for your .40. I'd suggest getting a couple different weights to try and put them to the test for yourself. Check them out here: http://www.speedshooterspecialties.com/store/index.php?main_page=index&cPath=103_90 Link to comment Share on other sites More sharing options...
fxdc Posted March 18, 2018 Share Posted March 18, 2018 (edited) I have a glock FL guide rod and use glock springs. I have 11lb to 15lb in 1lb increments. Using a 13 in my open major 9 Core. Runs fine... will be testing loads with a 12lb when bullets get here. Will use the 11lb for my lite steel loads. Edited March 18, 2018 by fxdc Link to comment Share on other sites More sharing options...
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