Fixed my random FTF on my stock 15-22

[Buckshot Barry]

I'm so happy to report that replacing the firing pin spring on my stock 15-22, circa 2015, with blue recoil spring fixed my failure to fire / light strikes that occurred about once every 25 rounds.

I used the McMaster-Carr Part #:9663K13 spring cut to 1.5 times the length of the stock spring. My crude test with a 1000g scale indicated the OEM required 12 ounces of pressure before the firing pin would compress enough to touch the scale plate. The McMaster at the 1.5x length required 9 ounces of pressure.

I thought the Hillman #9 spring was to large in diameter where it rubbed the bolt channel and to light at 6 ounces to use with my stock hammer.

I test fired 150 rounds Federal Auto Match at the speed you see in the video with ZERO issues. I am one happy camper

[ame="http://www.youtube.com/watch?v=M3mTC0gOLQY"]http://www.youtube.com/watch?v=M3mTC0gOLQY[/ame]

 

[Mikey11]

You SHOULD be happy too man. Way ya go & high fives !!!

Good shooting to brother.

 

[PeglegJones]

Where did you find that spring?

Sent from my Pixel XL using Tapatalk

 

[Bassyaks]

Click below and insert 9663K13 in search

McMaster-Carr

 

[Buckshot Barry]

Just wanted to give an update. 2 more range visits with the new McMaster-Carr firing pin spring and my 15-22 runs flawlessly with Federal Auto Match.

I'm sure I have 500 rounds with it now.

 

[batmann]

Thanks for the tip! I have seen the 'blue recoil spring' mentioned. My question is, how do I get one? Thanks in advance?