I agree with Pip.
I picked up some of this on for some cheap blasting ammo. Took it to the range along with my AI AWP when I was breaking/sighting in my Steyr Scout. I'd shoot the Scout, let the barrel cool, then clean it. When the barrel was cooling I was "plinking" with the AWP. I shot about 3 round of the Indian and each time I had to force the bolt open. My AWP has never had a problem digesting anything. I tried some of my match loads (Fed Match) and hunting loads (Win Supream) with no problem.
When I got done breaking in the Scout I decided to run one round through it... again, like the AWP, extreamly hard bolt unlock.
I through the rest of the crap away!