Years ago I had a gunsmith mount a scope on my 6.5 Arisaka, I heard that they had a very strong action and asked him about it. He told me that he once tried to blow one up, he filled the case with 2400 powder and fired it using a string while he hid behind a tree, nothing happened, he then did the same thing except he plugged the barrel with a ball bearing, he ended up bulging the barrel, the action was still intact. I still have my sportsorized Arisaka and on occasion I take it out and run a few rounds through it.
