I've fired federal in mine ..... before I started hearing of all the possible bad things that might happen if you don't hold your tongue just right .
look for 140grain bullets , or lighter , don't use the heavy 160 grain stuff until you mod your gasblock into a adjustable one .
I have fired lots of norma and Remington through my guns . the norma feels like it is loaded hotter
make sure the bolt and firing pin is clean and dry . then I like to give it a light squirt of graphite and nothing else for lube .
when letting the bolt slam forward , make sure it is pointed in a very safe direction ( this goes for any semi ) as it is possible the inertia coupled with something else may cause the round to go off.
don't forget to keep your fingers out of the action .
just to be clear there are 2 issues you need to watch for , the first is slamfire , or out of battery fire .
this is when the bolt is release and for what ever reason the round fires off before the bolt can lock . ( sticky firing pin , sensitive primers ( ie federal ) .... there are probally a couple more things that can do this .
the other issue has to do with the amount of gas pressure that opens the action .
it runs its best with a medium burning powder like imr 4064 and 140 grain bullets or less . slow burning powders , or heavier than 140 grain bullets can cause too much pressure in the gas system .
when the gas pressure is too high it wants to cycle the action while the case is still under high pressure and still sealing against the chamber walls . a few things can happen , the rim on the round can get ripped off leaving the case behind .
the case head can get ripped off causing hot gases to come backwards to the shooter .
or it can manage to pull the whole case out , and again exposing the shooter to high pressure gases .
an adjustable gasblock and using cci#34 primers are the fixes I'm using
