earplug Posted November 13, 2015 Share Posted November 13, 2015 9MM minor power factor. Have always used Federal primers with good results. Since i'm cheap and there is a lot of experience here. What other primers can I expect reliable ignition from? STI 9MM Trojan with factory TI hammer strut if it matters. Link to comment Share on other sites More sharing options...
BeerBaron Posted November 13, 2015 Share Posted November 13, 2015 With a 15lb hammer spring I'd say federal will be the only 100% reliable option. why do you want/need such a light hammer spring though? the general consensus is next softest after federal is winchester. Link to comment Share on other sites More sharing options...
incorrigible Posted November 13, 2015 Share Posted November 13, 2015 My STI DVC is supposed to have a 15lb mainspring and I use Remington SP primers with no ignition issues. Link to comment Share on other sites More sharing options...
Doellemite Posted November 13, 2015 Share Posted November 13, 2015 From my experience, this is how they rate from softest to hardest: Federal Magtech Winchester Remington CCI I've never used Wolf or Tula, but I believe they're on the harder side. If incorrigible has good ignition with Remington, I would just steer clear of CCI. Link to comment Share on other sites More sharing options...
earplug Posted November 13, 2015 Author Share Posted November 13, 2015 I shall buy some Winchester SP and find out. Link to comment Share on other sites More sharing options...
mach1soldier Posted November 13, 2015 Share Posted November 13, 2015 I have used: CCI Federal S&B Tula Winchester All with a 15lb spring. Had a few issues with S&B but pretty sure they were all due to a bent firing pin. Put a new firing pin in a few months back and 4-5k with no issues. Basically, you really shouldn't have a peoblem Link to comment Share on other sites More sharing options...
earplug Posted November 13, 2015 Author Share Posted November 13, 2015 Thanks mach1soldier. I know where I can buy some CCI. Link to comment Share on other sites More sharing options...
PatJones Posted November 13, 2015 Share Posted November 13, 2015 If you have a problem, it would be with CCI primers. CCIs are the hardest of the name-brand primers. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted November 13, 2015 Share Posted November 13, 2015 Hello: Buy a 17lb ISMI mainspring since it will only raise up your trigger pull a couple of ounces. You could also add a Dawson extended firing pin and lighter firing pin spring. That combo will light off small rifle primers even Remington benchrest ones. Thanks, Eric Link to comment Share on other sites More sharing options...
waktasz Posted November 13, 2015 Share Posted November 13, 2015 I haven't had any problems with CCI and a 13# spring in my Tanfo. I've heard the Winchesters are worse so I've never tried them. I use Fed for my match ammo and you have to load your stuff right for any of them to work 100% when you go to light springs like that. Link to comment Share on other sites More sharing options...
Postal Bob Posted November 13, 2015 Share Posted November 13, 2015 I have the same Trojan with the 15 lb mainspring. I use Winchester primers exclusively, but have also used CCI primers with no problems. Link to comment Share on other sites More sharing options...
ParaGunner Posted November 13, 2015 Share Posted November 13, 2015 Hello: Buy a 17lb ISMI mainspring since it will only raise up your trigger pull a couple of ounces. You could also add a Dawson extended firing pin and lighter firing pin spring. That combo will light off small rifle primers even Remington benchrest ones. Thanks, Eric Good advice. Link to comment Share on other sites More sharing options...
EdwardBlake Posted November 14, 2015 Share Posted November 14, 2015 Well my DVC has zero issues with the stock spring and CCI primers. If it's a 15# main spring then you should be good to go. Link to comment Share on other sites More sharing options...
zzt Posted November 15, 2015 Share Posted November 15, 2015 The only time I ran into problems with light primer hits was when I tried a 9mm Ti firing pin with an extra heavy firing pin spring and light main springs. When I changed back to an SS firing pin, the problem disappeared. Even so, I now run 17 and 18 lb springs in all my 1911s, just to be sure. Link to comment Share on other sites More sharing options...
rpm8300 Posted November 15, 2015 Share Posted November 15, 2015 You could prob use the 15lbs mainspring an CCIs for practice, but for match, stick with the Federal 100s or match primers. Link to comment Share on other sites More sharing options...
Bob DuBois Posted November 16, 2015 Share Posted November 16, 2015 Have a four year old 15lb main spring in my Trojan 9mm no issues with Winchester. Link to comment Share on other sites More sharing options...
Flash74 Posted November 16, 2015 Share Posted November 16, 2015 I have used 15lb main springs and they had no trouble with CCI, Remington and Magtech primers. However, switching between 15, 16 & 17lb main springs in my pistols made no discernible difference in trigger pull so I just stuck with 17lb main springs to ensure no light primer strikes. Link to comment Share on other sites More sharing options...
EkuJustice Posted November 16, 2015 Share Posted November 16, 2015 Use a 17 pound ISMI here with an extended firing pin and never an issue. Having felt what STI claims is a 15 pound spring and an ISMI 17pound I would say the STI spring is not 15 pounds. The 17 pound has set off everything and no real difference in pull weight Link to comment Share on other sites More sharing options...
Aircooled6racer Posted November 16, 2015 Share Posted November 16, 2015 (edited) Hello: Changing from a 15lb to a 17lb only changes the trigger pull about 3ozs at the most. The 17lb will set all primers that I have tried. I should have added that is with a EGW hammer and not a super light or heavy hammer. Thanks, Eric Edited November 16, 2015 by Aircooled6racer Link to comment Share on other sites More sharing options...
BeerBaron Posted November 17, 2015 Share Posted November 17, 2015 I haven't had any problems with CCI and a 13# spring in my Tanfo. I've heard the Winchesters are worse so I've never tried them. I use Fed for my match ammo and you have to load your stuff right for any of them to work 100% when you go to light springs like that. You can't really compare spring weights in tanfoglio's to 1911s. My tanfoglio sets of small rifle primers with a 13 too but it's a totally different gun. I'm far from a 1911 expert but a 17lb spring seemed the safe ground to me. But it seems plenty of others are having success with 15s. Link to comment Share on other sites More sharing options...
earplug Posted November 18, 2015 Author Share Posted November 18, 2015 Fired off 100 CCI's today without issue. Thanks for the help. Link to comment Share on other sites More sharing options...
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