Best 10/22 Firing Pin

[zeke06]

I’ve been trying to figure out how to squeeze the most accuracy out of the 10/22 for a few years now. I’ve left no stone unturned and have tried every idea(crazy or not)that has pop into my head. Some where almost a total waste of time and others did a lot better then I imagined. One of the best improvements besides bedding and a great barrel was fine tuning the firing pin and ignition. I’ve tried every pin on the market and have tested how deep the FP strikes and all different shapes and profiles. Some of the best targets I’ve shot were with a FP that I made. I’m not gonna go into full detail or post pictures of it until I’m 100% happy with it and get a few out for more testing. Below are a few cases of the latest FP shape that I’m trying and have been very pleased with so far.

Let me know what you guys think of it and if there’s any interest for me to make a run of them.

 

[nvtoy]

This is very interesting to me. Please keep us updated with what you come up with, and anything else you might feel helps accuracy. Thanks nvtoy

 

[Hi-NV Shooter]

I’ve been trying to figure out how to squeeze the most accuracy out of the 10/22 for a few years now. I’ve left no stone unturned and have tried every idea(crazy or not)that has pop into my head. Some where almost a total waste of time and others did a lot better then I imagined. One of the best improvements besides bedding and a great barrel was fine tuning the firing pin and ignition. I’ve tried every pin on the market and have tested how deep the FP strikes and all different shapes and profiles. Some of the best targets I’ve shot were with a FP that I made. I’m not gonna go into full detail or post pictures of it until I’m 100% happy with it and get a few out for more testing. Below are a few cases of the latest FP shape that I’m trying and have been very pleased with so far.

Let me know what you guys think of it and if there’s any interest for me to make a run of them.
View attachment 1148649 View attachment 1148648

That is very interesting, there is a shooter by the name of Ivan Wells who has been working with something similar for bolt guns for about 5-years now I believe. his success is he has the highest ARA agg. currently of 2300+ I think it was.
also the current V3 Turbo bolt guns have a similar pin shape. it is being said that the first action to have that firing pin shape was Alan Hall's I think it was, more than 10-years ago maybe?

Lee

 

[BeefyT11]

Depending on price, I would be very interested... if anyone is leery this man knows his 10-22s

 

[USMCDOC]

Depending on price, I would be very interested... if anyone is leery this man knows his 10-22s

he does know them 10/22's and i don't think that price is a matter, if it is a real improvement.. which i think that it will be..

 

[BeefyT11]

he does know them 10/22's and i don't think that price is a matter, if it is a real improvement.. which i think that it will be..

On second thought I agree... you should probably make these

 

[Dusty Stevens]

Looks like its hitting too close to the edge. You may can improve it even more by taking that top edge down a bit if you still want to test

 

[ms6852]

It's very interesting, and I definitely would be interested in the firing pin myself. As you well know there is a cult following on 10/22's whereas I myself have spent more money and time on a 10/22 than in other guns. Nice work, would like to here more future results in your testing. You get this to work on cheap bulk ammo where sometimes the primer might be missing by expanding the striking surface you could really have a winner here. BTW if you use my idea you owe me a firing pin for life. Great work.

 

[zeke06]

I know this shape isn’t anything new especially in the BR world. I have a couple more that I’m going to try that are half moon on the top and more square on the bottom. On a 22lr rimfire the very first thing the firing pin does is push the round a few thousandths into the chamber and then makes it go bang.(unless HS is to tight or the rim is thicker then it should be) I believe that’s why I’ve had better luck with firing pins that have a little more surface area on the tips.
Dusty, it seems like I’m constantly testing. I agree that I can suck it in another .007-.010 and change my radius a few thousandths as well.
As far as price they will be on the high side because of the machining and grinding that will be involved. That said I’d like to keep them around $35. I will definitely update any progress and testing.

 

[Dusty Stevens]

I know this shape isn’t anything new especially in the BR world. I have a couple more that I’m going to try that are half moon on the top and more square on the bottom. On a 22lr rimfire the very first thing the firing pin does is push the round a few thousandths into the chamber and then makes it go bang.(unless HS is to tight or the rim is thicker then it should be) I believe that’s why I’ve had better luck with firing pins that have a little more surface area on the tips.
Dusty, it seems like I’m constantly testing. I agree that I can suck it in another .007-.010 and change my radius a few thousandths as well.
As far as price they will be on the high side because of the machining and grinding that will be involved. That said I’d like to keep them around $35. I will definitely update any progress and testing.

Its something thats been on my mind a long time- placement on the rim more than shape. Wish i had an x-ray machine

 

[USMCDOC]

I know this shape isn’t anything new especially in the BR world. I have a couple more that I’m going to try that are half moon on the top and more square on the bottom. On a 22lr rimfire the very first thing the firing pin does is push the round a few thousandths into the chamber and then makes it go bang.(unless HS is to tight or the rim is thicker then it should be) I believe that’s why I’ve had better luck with firing pins that have a little more surface area on the tips.
Dusty, it seems like I’m constantly testing. I agree that I can suck it in another .007-.010 and change my radius a few thousandths as well.
As far as price they will be on the high side because of the machining and grinding that will be involved. That said I’d like to keep them around $35. I will definitely update any progress and testing.

in the pursuit of accuracy.. esp in a 10/22 a new designed firing pin that really works, i don't see 35.00 bucks being out of line at all!

 

[BeefyT11]

in the pursuit of accuracy.. esp in a 10/22 a new designed firing pin that really works, i don't see 35.00 bucks being out of line at all!

Where do I preorder?

 

[USMCDOC]

Where do I preorder?

Just give @zeke06 a PM.. and you should be on the list!

 

[Hi-NV Shooter]

I know this shape isn’t anything new especially in the BR world. I have a couple more that I’m going to try that are half moon on the top and more square on the bottom. On a 22lr rimfire the very first thing the firing pin does is push the round a few thousandths into the chamber and then makes it go bang.(unless HS is to tight or the rim is thicker then it should be) I believe that’s why I’ve had better luck with firing pins that have a little more surface area on the tips.
Dusty, it seems like I’m constantly testing. I agree that I can suck it in another .007-.010 and change my radius a few thousandths as well.
As far as price they will be on the high side because of the machining and grinding that will be involved. That said I’d like to keep them around $35. I will definitely update any progress and testing.

If you have a situation where the firing pin pushes the round further into the chamber to fully seat it before it fires you will have inconsistent ignition. inconsistent pin depth strike could be why you see an improvement with a wider foot print on the pin strike, as you now are increasing your chances of hitting more priming compound which will give better ignition.

Lee

 

[zeke06]

If you have a situation where the firing pin pushes the round further into the chamber to fully seat it before it fires you will have inconsistent ignition. inconsistent pin depth strike could be why you see an improvement with a wider foot print on the pin strike, as you now are increasing your chances of hitting more priming compound which will give better ignition.

Lee

Rim thickness on Eley brass is in the ballpark of .040. Most of the time HS on 22 rimfires is set to .043. That leave .003 of possible movement. Now with the 10/22 after a few shots your going to start to gain some build up on the bolt face and breech that’s going to make your HS a little longer now to. I always say I’m in a love hate relationship with these 10/22. They’re always fighting against you but I alway find myself coming back to them.

When I get somewhat caught up I’ll measure and sort some rounds by rim thickness and see how much wiggle room there actually is between a fully seated round and the bolt face.

 

[Dusty Stevens]

Rim thickness on Eley brass is in the ballpark of .040. Most of the time HS on 22 rimfires is set to .043. That leave .003 of possible movement. Now with the 10/22 after a few shots your going to start to gain some build up on the bolt face and breech that’s going to make your HS a little longer now to. I always say I’m in a love hate relationship with these 10/22. They’re always fighting against you but I alway find myself coming back to them.

When I get somewhat caught up I’ll measure and sort some rounds by rim thickness and see how much wiggle room there actually is between a fully seated round and the bolt face.

Mill .002 off the front of the bolt