I'll be very interested in what you find.

By the way, your answer on the Garand 4895/4350 is correct as I understand it. The max charge with a 150-grain bullet is around 50 grains with a 150, while it's about 60 grains with 4350. This means 20% more gas in the same bore volume, which means the slower powder maintains higher pressure further down the bore..

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John Steinbeck