loading for an m1a primmer ?

[JO JO]

is CCI 200 large rifle primers ok to load for the m1a or will they cause a risk of a slam fire ?

 

[Ironicaintit]

Sure, there’s a risk of slam fire, and a lot of guys swear off standard primers because of it.
Using a CCI #34 will undoubtedly give a little more protection as far as that goes.

I don’t have an M1A, but I do have a Garand (same principle) and load for it with CCI 200 and it hasn’t been an issue.

keep the muzzle down range, and always remember the possibility, and you’ll be fine.

 

[Nature Boy]

CCI 200 will work just fine.

The primary way to avoid a slam fire is to always load from the magazine.

@Slamfire , call the office. You have a client that would like to speak with you

 

[Charlie98]

CCI #200's are almost as hard as the #34's... I wouldn't have a problem loading either, and have done so.

The key to safe primer seating is making sure the primer is seated a couple thousandths below the case head. A good, clean primer pocket usually does it, but if you have some out of spec brass, you may have to uniform the primer pocket to insure they seat correctly.

 

[Archie]

I've used CCI #34 primers in bolt action rifles as well. They all go off normally in my experience. No need to be concerned they're too hard to work in other rifles.

 

[KY DAN]

Normal primmers are ok, slam fires are rare and when they do happen they usually are explainable and its usually operator error.

What makes a slam fire work is either a stuck firing pin or a high seated primmer.

Solutions as follows

-clean your bolt every time
-clean primer pockets
-unify primmer pockets with special cutter from kn.
-seat primmers deep (my pockets are cut .131 deep are primers fully seated )

-do not seat bullet to touch the rifling.

 

[JO JO]

Thanks for the input guys,
I will use the cci 200 that I have
For now