Best primer for a light hammer?

[danmdevries]

I installed a super light trigger and hammer spring on my ruger gp100 and am having unreliable ignition. Strike without firing on 1 in maybe 15 RDS. CCI primers, spp 38sp.

I have Winchester and CCI primers only, but CCI are the only spp I have, so before I buy another brand to experiment, or increase trigger spring, figured I'd ask here.

 

[Manatee]

Federal. Primer hardness (from hard to light) is generally CCI, Winchester, Federal

 

[sloughfoot]

What is your cylinder endshake?

 

[-Jake-]

CCI seem to be the hardest in my experience as well

 

[snapping turtle]

Federal is the softest of primers I am aware of.

 

[Birds Away]

All the guys I know running 8.5# mainsprings on their race guns use Federal primers exclusively.

 

[danmdevries]

Thanks all. I'll try to find some Federals and try em out in this gun.

 

[danmdevries]

What is your cylinder endshake?

Think i recall 0.003 when I reassembled the gun. Haven't rechecked after running it.

 

[Leo]

Go up one pound on the hammer spring and you will probably be golden. Since most light springs have plenty of gap between the coils, you may be able shim up the spring end that is down my the frame end of the spring guide. A 1/4 inch will probably get you an extra pound of preload. Just be sure that you do not get coil bind. Good Luck

 

[danmdevries]

Go up one pound on the hammer spring and you will probably be golden. Since most light springs have plenty of gap between the coils, you may be able shim up the spring end that is down my the frame end of the spring guide. A 1/4 inch will probably get you an extra pound of preload. Just be sure that you do not get coil bind. Good Luck

I do have another hammer spring 2# up, but would like to see if I can fix it with my load, without increasing pull. If the primer change doesn't fix it, then I'll try slowly upping the spring weight.

 

[pdg45acp]

CCI is hard, ran into that when adjusting the hammer spring tension on my old Smiths.

I use Remington 1 1/2 mostly for shooting J frame Smiths double action.

Federal is another good one for that task.

The reality is you want to set your gun up so it will ignite everything in double action, so load with CCI and adjust accordingly.

 

[danmdevries]

Remeasured headshake, 0.003. Gun is solid. It's had less than 1000rds through her, and of that, 900 have been super super lightweight lightly loaded 38's (125gr over 2.9-3.0gr titegroup)

 

[danmdevries]

CCI is hard, ran into that when adjusting the hammer spring tension on my old Smiths.

I use Remington 1 1/2 mostly for shooting J frame Smiths double action.

Federal is another good one for that task.

The reality is you want to set your gun up so it will ignite everything in double action, so load with CCI and adjust accordingly.

Nah, it's a special use gun, I want to be able to run it as fast as possible, think race gun. Get a load that works in the gun and I'm very happy. I'd rather tailor the load to the gun, than give up my 7lb trigger

 

[Cat-Herder]

I had issues with CCI in my Dan Wesson. I switched to Winchesters for everything, and have had zero problems. Never any problems when I had to use Federal, but they dried up in my area. Winchesters it is. I still keep CCIs around for my 1911s though.