TheRealStallman Posted October 8, 2021 Share Posted October 8, 2021 I'm looking to get a 1911 chambered in 9mm to shoot some single stack occasionally at local USPSA matches. I'd like to use the same ammo (147gr Brass Monkey Bullets and 3.2gr N320) that I use in my Canik TP9SFX carry optics gun. Would I just match the same weight recoil spring that I use in my Canik or is there more to it cycling correctly than just replacing a recoil spring? Link to comment Share on other sites More sharing options...
Doge Posted October 8, 2021 Share Posted October 8, 2021 Depends on your load, you can get away with an 11lb and even 9lb with a 9mm 1911. With 147gr try out a 9lb and see if the impulse is what you like. Link to comment Share on other sites More sharing options...
johnmyster Posted October 9, 2021 Share Posted October 9, 2021 (edited) No, the "weight" of spring in your Canik will not translate 1:1 into what is appropriate for our 1911. You'll get opinions from 8# to 13#. It'll depend on the load, the gun, the mainspring as to how low you can go and what you ultimately prefer. My 5" 1911s are happy in the 10 to 12 pound range using 135 gr loads at 1000 fps with a 17# mainspring. Edited October 9, 2021 by johnmyster Link to comment Share on other sites More sharing options...
Dr. Phil Posted October 9, 2021 Share Posted October 9, 2021 Some of the companies have "test" or "set up" packages of springs. They run in 3s (those I have purchased), like 10lb, 11lb and 13lb. Pick whichever you want to test. Different companies vary the weights as they package them. Nice to be able to try several at one time. As stated above, all are different. My 5" I run a 10lb. 6" I run 11lb (5" spring BTW), my TP9SFX I run a Glock 13lb. Link to comment Share on other sites More sharing options...
ltdmstr Posted October 9, 2021 Share Posted October 9, 2021 I run 9 lb springs in my 9mm 1911/2011s. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted October 9, 2021 Share Posted October 9, 2021 Hello, buy a 9,10 and a 11lb recoil springs and try them to see what you like best. Shooters Connection should have them all in stock. I use mostly ISMI but you could try the Wolff springs also. Thanks, Eric Link to comment Share on other sites More sharing options...
twodownzero Posted October 9, 2021 Share Posted October 9, 2021 I use a 9 or a 10 pound, 9 probably feels the best. I can even tell when they're fresh versus when they have a few rounds on them. ISMI Link to comment Share on other sites More sharing options...
Bill H Posted October 10, 2021 Share Posted October 10, 2021 I use 10 lb in my 4 9mm 1911s. Have tried 9s but just prefer the feel of 10s better. Link to comment Share on other sites More sharing options...
shootin-blanks Posted October 12, 2021 Share Posted October 12, 2021 10/17 in all of mine.. 135g typically but I've shot all weights the same setup. Link to comment Share on other sites More sharing options...
rpm8300 Posted December 2, 2021 Share Posted December 2, 2021 For a Dan Wesson PM9, I ran an straight 8 and a reduced power hammer spring; note that both springs affect the timing in a systematic way. This was with 147 Blues and TG for about 130 PF. Very soft load - flat but some commented the slide felt 'slow.' Link to comment Share on other sites More sharing options...
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