Talquin: best idea I've heard all day!
Likely CGN has more real EXPERTS online at any time than any other site on the Web.
As to advice about things, my Dad always said that advice can be helpful, just as long as you get it from somebody who isn't trying to sell you something.
Apart from training rifles, some Aris were built, right at the end of the War, with cast receivers. These are said to have been rather on the frangible side and so should never be shot. But the 6.5 was out of production in Japan by this time, so these would have been Shiki 99 rifles, the 1939 type.
Training rifles, I am told (but cannot vouch for, never having seen one) were not rifled.
This would indicate to me that if it's a 6.5 and it has rifling, likely it is strong enough. That little 6.5x50SR only operates in the 40,000-pound range and there is a LOT of iron there to handle it.
If you know the HISTORY of a rifle, that can be a help, too. I met an older American one day at the local gas station. He had veterans' plates on his car and we got talking. I was just on my way to the range with my Ari and he told me that he had one at home that he had picked up after the shooting was over on an island called Saipan. It was his one-and-only war trophy, and people had told him that it was unsafe. And he really wanted to try it. It was a 6.5, he told me and he even had some Jap shells to fit it. I told him to get a box of new stuff and taker her out and have fun. He said he would, now that he knew that they were safe.
It just p*ssed me off, that Hero (and anyone who was actually there was one) being denied the use of his own Trophy, for so many years, because of some idiot rumor.
Aris are rough and tough and they will take just about anything you can cram into them, even if they ain't pretty.
"A thousand lives for the Emperor!"
Just fine so long as one of them isn't mine!
Have fun!