paraman1 Posted January 5, 2003 Share Posted January 5, 2003 I had a 15# mainspring put in my Springfield Operator and am now having some problems with light primer hits . Will a Limcat extra length firing pin help with this problem or am I going to have to use Federal (Read , more expensive) primers ? (Edited by paraman1 at 8:58 pm on Jan. 4, 2003) Link to comment Share on other sites More sharing options...
Duane Thomas Posted January 5, 2003 Share Posted January 5, 2003 Put a 17-pound hammer spring in the gun. Link to comment Share on other sites More sharing options...
racer x Posted January 5, 2003 Share Posted January 5, 2003 along with a 17# or 19# mainspring, the limcat extended firing pin should solve the problem...it will also help against primer flow... Link to comment Share on other sites More sharing options...
2alpha Posted January 6, 2003 Share Posted January 6, 2003 Is your S/A a new one with a titanium firing pin? Is so change it for sure. Link to comment Share on other sites More sharing options...
paraman1 Posted January 6, 2003 Author Share Posted January 6, 2003 I never thought of that 2alpha . I will go check it for sure . I had the same basic setup in my P-16 Para and never had a problem so this may be it . Link to comment Share on other sites More sharing options...
diehli Posted January 6, 2003 Share Posted January 6, 2003 Is the main benefit or running an extended firing pin being able to run extremely light mainsprings? What are the trade-offs? Reliability, excessive/accelerated internal parts wear, etc.? Link to comment Share on other sites More sharing options...
diehli Posted January 6, 2003 Share Posted January 6, 2003 Another question, would an extended firing pin with too heavy a mainspring lead to primer punctures? Anyone ever experienced this? Link to comment Share on other sites More sharing options...
2alpha Posted January 7, 2003 Share Posted January 7, 2003 Long firing pins are used mostly to prevent primer flowback on hi pressure loads like 38 super major. I've never heard of a primer puncture problem. Link to comment Share on other sites More sharing options...
gary meyer Posted January 7, 2003 Share Posted January 7, 2003 you might try an extra long disconnector. Link to comment Share on other sites More sharing options...
2alpha Posted January 7, 2003 Share Posted January 7, 2003 How will a extra long disconector help this problem? BTW Paraman, Federal primers are the best and worth the money. Link to comment Share on other sites More sharing options...
TBF Posted January 7, 2003 Share Posted January 7, 2003 I might be missing something, but a long disconnector seems to not be a good answer to this problem. Stock mainspring is 19 lb. or so on colt 1911 in 45 wilson spring Im sure is 17 lb. (and works great in 45 ) . Travis F. (Edited by TBF at 11:06 am on Jan. 7, 2003) Link to comment Share on other sites More sharing options...
Quigley Posted January 12, 2003 Share Posted January 12, 2003 "How will a long disconnector help this problem" I had the same problem, the trigger setup was wrong and the hammer would drop on halfcock. The firing pin was long enough to mark the primers but no "boom" My gunsmith changed the disconnector, in fact did a whole new trigger job. I love my gun once again! If you don't get light hit's on every round you may have to look at something else besides very heavy main springs. It's probably the trigger setup. I found the best thing to do was experiment. Why you ask? I screwed it up so bad I HAD to send it to a professional Works every time Cheers Quigley Link to comment Share on other sites More sharing options...
warpspeed Posted January 12, 2003 Share Posted January 12, 2003 Paraman, In all 4 of my 1911 type guns I run a 17lb mainspring, Limcat Firing pin & Wolffe firingpin spring without problems. Now, to state the obvious but often overlooked- Make sure that you clean out the firing pin hole in the slide. It does get stuff in there and that debris can cause light hits too. (Edited by warpspeed at 11:44 am on Jan. 12, 2003) Link to comment Share on other sites More sharing options...
2alpha Posted January 13, 2003 Share Posted January 13, 2003 Warpspeed might be ontrack with the obvious, while you're checking the firing pin hole look closely at the firing pin spring. A small part of the spring, like half of a circle, can break off and stick on the firing pin. This little piece will wedge the firing pin slowing the strike. I've seen this a few times and you have to pull the spring off the firing pin and look real close. Link to comment Share on other sites More sharing options...
George D Posted January 13, 2003 Share Posted January 13, 2003 I had problems with ocassional light hits and the gunsmith for the distibutor suggested it could be because my high IPSC grip (thumb over the slide safety) was not fully dis-engaging the grip safety. I taped the grip safety down and the problem dis-appeared. Link to comment Share on other sites More sharing options...
Duane Thomas Posted January 15, 2003 Share Posted January 15, 2003 George, I could certainly stand to be educated if I'm wrong, but I don't see how the grip safety, and your grip thereon, could cause that problem. All the grip safety does is block the trigger from being pulled to the rear, far enough to trip the sear, unless it's depressed. Link to comment Share on other sites More sharing options...
George D Posted January 15, 2003 Share Posted January 15, 2003 Duane, My knowledge of the mechanics of the S&W M945 is next to zero, but I was very sceptical when the gunsmith at the local S&W distributor suggested this as a possible cause of the problem. The gun was new and had fired only 1200 rounds, with maybe 20 light hits. Since I taped down the grip safety I've fired about another 1200 rounds without a light hit. It doesn't make sense to me but he was quite vehement in his suggestion, and the problem hasn't returned. I'm a complete novice on autos and would greatly appreciate any advice and opinion on alternative causes for this problem. They may relate sufficiently to paraman 1's problem as to not create too much thread drift. (Edited by George D at 9:30 am on Jan. 16, 2003) Link to comment Share on other sites More sharing options...
paraman1 Posted January 18, 2003 Author Share Posted January 18, 2003 Switching to Federal primers has fixed the problem . I am going to switch out the firing pin for either a longer one or a steel one (has titanium) and see if that will light off the Winchester primers reliably. Link to comment Share on other sites More sharing options...
2alpha Posted January 18, 2003 Share Posted January 18, 2003 Paraman, a steel firing pin will fix it if you had the titanium. I bet you won't need a long one either. Link to comment Share on other sites More sharing options...
Duane Thomas Posted January 19, 2003 Share Posted January 19, 2003 15-pound mainspring PLUS titanium firing pin? Man, you were gettin' it from both ends. So to speak. Link to comment Share on other sites More sharing options...
reddot Posted January 20, 2003 Share Posted January 20, 2003 FWIW I had a similar problem with my SV open gun light hits and Win. primers. I couldn't afford to scrap 25000 primers and buy Feds, so I tried new mainspring etc. The XL pin was the only thing to make it work 100%. Also, the XL pin willcause pistol primers to rupture in my Super. RD Link to comment Share on other sites More sharing options...
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