Well RR, I'm guessing your pressure item IS why the AmmoGuide folks said "no no" to the possible conversion. But I'm having a devil of a time finding listed chamber pressures for the Arisaka 6.5, though I know Ackley did some torture testing of it years ago and found it to be about the strongest of all military actions.

That being said, the only pressure listing I can find show the numbers in some oddball measurements. CPI is the measurement, standing for Commision Proof International ... some European style SAAMI type organization. Anyway, they list the Arisaka 6.5 with 43 CIP (X 1000) and the Swede 6.5 round with 55 CIP (X 1000).

Another old Speer load book from 1954 merely states that the Arisaka 6.5 round loaded with the 138 grain bullet used in WW2 developed about 2400 fps and about 35,000 pounds. Thats all it said.

So, it would appear that your concern about the pressure being an issue might be the concern also being voiced by the AmmoGuide folks.

Still, I find it had to believe that the Arisaka action, long konwn for it's superior strength, would be too weak to handle the Swede round.

Maybe this will just have me saving my money and leaving this project to stay leaning in the cabinet, like it has for the past 25 years.