rl69,
What I did was cut three coils off the firing pin spring. Lowered the pull by a couple of pounds. To make the overall experience a little smoother I sanded the end sides of the trigger spring and the rear of the bolt stop (the portion where the bolt actually comes flush into contact with the trigger spring). I used a very high grit sandpaper, just enough to give it a little shine. Of course any modification to a firearm should be done by a professional. I advise speaking to your local gunsmith before embarking on any crusade. Hope this helps.
DON'T cut the firing pin spring! it lightens the pull but also causes misfires. the correct way to do it is to change the angle of sear engagement. lessen the angle a little while still keeping a positive angle with the hammer. creep can be removed by changing the amount of engagement. if you remove to much, in a semi auto you may get a slam fire. it is easy to take off too much. i recommend you take it to a gunsmith. he should have all the tools he needs to keep everything square and safe. if you decide to do it your self, take your time unless you want to be buying a new hammer for your gun in the near future.
forget the shims. they lighten the trigger at the expense of possible slam-fires. not safe in my opinion. make sure you are aware of how the mosin trigger assy. works and what will happen when you play with it. stay safe! http://www.gunandgame.com/forums/mos...m-trigger.html
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Cutting the coils will only cause misfires if you cut too many, I just cut off 1 and was very impressed with the improvment that it made other than that polish the contact points.
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There is a easy way to lighten the trigger other than using a shim. This will not work on all but on ones with excessive downward pressure on the sear spring. You just need to bend the sear slightly where the end is just riding on the receiver. A problem with many is there is excessive downward pressure where the sear spring rides on the trigger and receiver. If you bend the sear spring just right so that the sear spring end keeps contact with the receiver you should still have full sear engagement and should be safe. This is also after you have done the proper polishing. Always do a good bump test after performing any modification.
how much travel do you have before it lets the bolt go? i found after shimming mine with aluminum that it was not enough travel. too close to firing when bumped to make me trust it. i really think it's the most unsafe way to lessen trigger pull and would not resort to it again. i'd polish first and maybe thin the sear but never lower the sear with shims unless it was a target only rifle for the range. not carried in the field. if you take a hard look at what's happening when you pull the trigger and the possible reasons for it being hard and gritty, i think you'll have to agree.
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the travel of the trigger didnt change any that i can tell.the trigger has always been clean and crisp just heavy.i took your posts to hart. first i polished the sear and took of .005 thousands off and couldn't tell any difference.so i went back to the computer and found the link i posted.i went and got my fish scale and measured the pull a little over 7 pounds. added the shims brought it down to 4 pounds. i did the bump test,drop test, knock the fire out of it, test and it didnt go off.i really want to run a few rounds threw it and see if that makes any deference.
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so was it the polishing? or the shims? reguardless if you think it is safe, use it. It is possible to do this yourself and get satisfying results. the fancy triggers with the ballbearings in them are a way cool addition to a mosin too. Ya might try that if you are interested in really making it a tackdriver
the travel of the trigger didnt change any that i can tell.the trigger has always been clean and crisp just heavy.i took your posts to hart. first i polished the sear and took of .005 thousands off and couldn't tell any difference.so i went back to the computer and found the link i posted.i went and got my fish scale and measured the pull a little over 7 pounds. added the shims brought it down to 4 pounds. i did the bump test,drop test, knock the fire out of it, test and it didnt go off.i really want to run a few rounds threw it and see if that makes any deference.
if you shimmed it and didn't notice it having less travel afterwards, it sounds like it might have had the problem ctresser was mentioning. when i shimmed mine, it felt great but there was hardly any travel before it let off and was way too close to a hair trigger for my tastes.
as long as you're sure it's safe and are happy with it's pull now, you're good to go.
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