Light Hammer Strikes

[xcskidude]

Working on an ISSC M22 with a few guys who know a lot more than me. We are trying to source some new springs, or even uprated springs, but to no avail yet.

Wondering two things:

One - Is there anyone around that can make a higher tensile spring that would fit (coils, diametre, guage, etc.)?

Two - Anyone have any experience with making a hammer heavier to increase the mass and therefore 'strike' on the rimfire cartridge?

Looking for some tips before I ruin a very comfortable .22lr firearm that still shoots 8.5 out of 10 shots.

 

[weasel1]

Any chance you can provide a pic of the firing pin (the end that would strike the round)? I'm just wondering if the face could be reduced increasing the impact pressure.

 

[silverfoxdj]

Working on an ISSC M22 with a few guys who know a lot more than me. We are trying to source some new springs, or even uprated springs, but to no avail yet.

Wondering two things:

One - Is there anyone around that can make a higher tensile spring that would fit (coils, diametre, guage, etc.)?

Two - Anyone have any experience with making a hammer heavier to increase the mass and therefore 'strike' on the rimfire cartridge?

Looking for some tips before I ruin a very comfortable .22lr firearm that still shoots 8.5 out of 10 shots.

Have you tried Wolfe springs they seem to have a ton of product.. U.S. of course

 

[ww270win]

Do those guns have a firing pin safety?

If yes, take the firing pin and the safety plunger out and check if the safety plunger is peened from the firing pin hitting it first . I had that happened with a tanfoglio .22 adapter. The firing pin would strike the safety plunger first, bounce of and the hit the rim very light. Most the time if i cocked the hammer the second time the round would go of.
At first I put ball bearing ball under the main spring to make the hammer hit harder but that did not work. Finally i pulled the firing pin and plunger and found the situation as mentioned above.