Light primer strikes

[123 black]

I recently put a POF 3.5lb trigger in my Grendel and while using wolf steel cased ammo I'm getting some light primer strikes. Previously I had a milspec trigger and had no issues with the cheap stuff. I can run more expensive ammo with no issues but I would rather have the gun eat whatever I throw at it. What are my options other then changing out my trigger for a heavier one?

[depletedyourcranium]

Is that a drop in trigger or a regular hammer/trigger set? If it's a regular set you can just put in an extra power hammer spring and that will most likely fix your problem. If it's a drop in trigger, you might can try and find a lighter weight firing pin, maybe.

[123 black]

Is that a drop in trigger or a regular hammer/trigger set? If it's a regular set you can just put in an extra power hammer spring and that will most likely fix your problem. If it's a drop in trigger, you might can try and find a lighter weight firing pin, maybe.

The new trigger is a drop in style. If a different firing pin is a option which one or type should I be looking at? A buddy of mine said I may need to worry about puncturing the primer if I start messing with the pin, is that correct?

[VASCAR2]

There have been some issues with mismatched firing pins and bolts. If this is a 6.5 Grendel bolt Alexander Arms uses a .136” bolt face depth. Typical 223/5.56 bolt has a .125” bolt face depth with a bolt length from tail to the face of the lugs of 2.80”. Alexander Arms lengthened the bolt to 2.810 to permit the use of standard length milspec firing pins.

The spec for firing pin protrusion on an AR-15 is .028” minimum and maximum .036”. A couple of bolt manufacturers used 2.80” length bolt with a standard length firing pin which resulted in pierced primers. Some manufacturers have switched from .280” length bolt to .281”. It is just best to measure your firing pin. Most information I find list a milspec firing pin at 3.277 to 3.279. You could have tolerence stacking where you have a long bolt and short firing pin.

Here is a thread where I measured all my bolts and firing pins to give you and idea of the manufacturing variances.

http://www.65grendel.com/forum/showthrea...ment/page2