Merlin Orr Posted March 24, 2005 Share Posted March 24, 2005 My heavy dust cover S_I Limited .40 fails to ignite the primers on about 10% of my reloads. Winchester small rifle. I use the Win. small rifle when I load Open ammo and don't want to change. The Limited gun has a heavy mainspring - about an 18# I believe, stock firing pin and a 14# recoil spring. I have checked the firing pin - looks ok. The spring looks good and is undamaged. My question - What's up with the Limcat XL firing pin? I see them recommended quite a bit. Is there a downside to using a longer firing pin. Does it make a primer rupture more likely to occur? Sorry for the rambling post. Quote Link to comment Share on other sites More sharing options...
Jake Di Vita Posted March 24, 2005 Share Posted March 24, 2005 I use the pin pretty much exclusively and have never had a light strike. If there are any downsides I am unaware of them. I'd recommend them in a second. Quote Link to comment Share on other sites More sharing options...
redmercury2 Posted March 24, 2005 Share Posted March 24, 2005 I use them in 3 sv racers and they definitely have eliminated probs with poorly seated primers and light hammmer hits that i have occasionally experienced.I VIEW LONG FIRING PINS as an insurance policy.,regards,doug Quote Link to comment Share on other sites More sharing options...
ErikW Posted March 24, 2005 Share Posted March 24, 2005 AFAIK, it's made to prevent primer flow, not to prevent light hits. Quote Link to comment Share on other sites More sharing options...
markm Posted March 24, 2005 Share Posted March 24, 2005 Maybe so Eric, but it does both. Quote Link to comment Share on other sites More sharing options...
Nolan Posted March 24, 2005 Share Posted March 24, 2005 Only downsides, on some guns it may be necessary to fit/swap firing pin stops so the firing pin doesn't protrude past the breachface at rest. Keep a close watch on the firing pin spring length and (THIS IS NOT FROM PERSONAL EXPERIENCE!) do not drop a loaded gun even with the safety on. The extended firing pin is virtually resting on the primer! Nolan Quote Link to comment Share on other sites More sharing options...
Merlin Orr Posted March 25, 2005 Author Share Posted March 25, 2005 Only downsides, on some guns it may be necessary to fit/swap firing pin stops so the firing pin doesn't protrude past the breachface at rest.Keep a close watch on the firing pin spring length and (THIS IS NOT FROM PERSONAL EXPERIENCE!) do not drop a loaded gun even with the safety on. The extended firing pin is virtually resting on the primer! Nolan <{POST_SNAPBACK}> Just popped open the box from Chuck and have installed the Limcat XL in my SV - the firing pin DOES protrude past the breachface at rest. I assume this as with the slide locked open I pressed the firing pin down flush (with a flat piece of metal) under the hammer area and it sticks out past the breachface about 1/16. Quote Link to comment Share on other sites More sharing options...
diehli Posted March 25, 2005 Share Posted March 25, 2005 Just popped open the box from Chuck and have installed the Limcat XL in my SV - the firing pin DOES protrude past the breachface at rest. I assume this as with the slide locked open I pressed the firing pin down flush (with a flat piece of metal) under the hammer area and it sticks out past the breachface about 1/16. <{POST_SNAPBACK}> As long as it doesn't stick out past it when you're not pressing on the rear of the firing pin, you're good to go. Lock back the slide and look at the breechface. If it doesn't protrude, shoot the gun... no worries. Quote Link to comment Share on other sites More sharing options...
Merlin Orr Posted March 25, 2005 Author Share Posted March 25, 2005 Go Rilla - I am good to go then. I will try it out tomorrow with a few....hundred rounds. Quote Link to comment Share on other sites More sharing options...
MikeFoley Posted March 25, 2005 Share Posted March 25, 2005 Go Rilla - I am good to go then. I will try it out tomorrow with a few....hundred rounds. <{POST_SNAPBACK}> Hopefully not with one pull of the trigger. Quote Link to comment Share on other sites More sharing options...
Zak Smith Posted March 25, 2005 Share Posted March 25, 2005 FWIW, I have the same problem with mv SV, but the failure rate is lower now. I did replace the mainspring with a regular 1911 "stock" power one. I did get a extended firing pin from ShootersConnection or SpeedShooters or somewhere a while back, but i would not fit due the SV interchangable breech face. Quote Link to comment Share on other sites More sharing options...
Nolan Posted March 26, 2005 Share Posted March 26, 2005 Oops, my bad. Yes, the extended firing pin protrudes from the breachface with the Hammer down. Johnny's (LimCat) extended firing pin will fit the SV Interchangeable Breachface. Zak, you can carefully turn the firing pin down so it will fit breachface retaining screw using sandpaper/emory cloth if you're patient. Nolan Quote Link to comment Share on other sites More sharing options...
Zak Smith Posted March 26, 2005 Share Posted March 26, 2005 It's an issue with the spring compression vs. the spring retaining shoulder on the pin vs. the ITS. If I just drop the FP in there with no spring, it protrudes real far past the breechface. With the spring in place, it can't compress enough to clear the FP stop. Quote Link to comment Share on other sites More sharing options...
Nolan Posted March 26, 2005 Share Posted March 26, 2005 Is this the same spring you use with the standard length firing pin? The XL firing pin shouldn't change the required spring length. I have to shorten the spring in my SV regardless of firing pin. Nolan Quote Link to comment Share on other sites More sharing options...
Merlin Orr Posted March 27, 2005 Author Share Posted March 27, 2005 I installed a new spring when I put in the Limcat FP - The new spring is Much longer than the old spring.... Nolan - You say you Have to shorten the sping in your gun - or do you choose to do so? Quote Link to comment Share on other sites More sharing options...
Brazos Custom Posted March 27, 2005 Share Posted March 27, 2005 With the interchangeable breechface there is not as much room for the spring and the spring needs to be shortened.The firing pin spring should be cut so that the end of the spring is even with the end of the firing pin when it is seated on the firing pin. Quote Link to comment Share on other sites More sharing options...
Merlin Orr Posted March 27, 2005 Author Share Posted March 27, 2005 Bob "The firing pin spring should be cut so that the end of the spring is even with the end of the firing pin when it is seated on the firing pin." Is this true with an SV that does not have the interchangeable breechface? Quote Link to comment Share on other sites More sharing options...
Brazos Custom Posted March 27, 2005 Share Posted March 27, 2005 No, just with the interchangeable breechface. The spring tunnel is shorter because of the way the breechface is made. Quote Link to comment Share on other sites More sharing options...
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