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Firearms >> Other Firearms >> Arisaka T-99 Mystery
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Message started by psteinmayer on Mar 28th, 2017 at 4:26pm

Title: Re: Arisaka T-99 Mystery
Post by psteinmayer on Mar 29th, 2017 at 2:20pm
Thanks very much Mike and Para!

I'm going to do some of Para's suggestions.  I'm also going to size a hair longer to move the shoulder out a hair because I feel like it may be sized too deep.  I know that some Arisaka's have a generous chamber size (my Nagoya Series 7 allows neck expansion to a ridiculous size, making resizing a real challenge), and that may also lend itself to this.

Re-anneal.
Seat slightly deeper (and also crimp too).
Check chamber length and adjust trim accordingly.
Bump powder charge up a hair more (I'm already just below max for 4064, but I think I can go up another grain as Arisakas are notoriously strong).

I'm also going to take another closer look at the chamber just to be sure.

Thanks all!


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