Replicating the mk VII 303 round

[ActionYobbo]

as far as powder goes 3031 is the closest to cordite and bench mark 2 is close to 3031 so is the old 2206. as for the projectile the Mk7 had 2/3 of its weight in the rear 1/2 so as far as I know the only commercially available projectile that comes close is the matchking but its a BT

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[Bindi2]

as far as powder goes 3031 is the closest to cordite and bench mark 2 is close to 3031 so is the old 2206. as for the projectile the Mk7 had 2/3 of its weight in the rear 1/2 so as far as I know the only commercially available projectile that comes close is the matchking but its a BT

Know about 3031 it produces to high a pressure curve for too low a speed. It was the powder used when the shoulder was the closet we could judge power till a chronny appeared in the 70s proving the shoulder was not even close. I have very early manuals which suggested 3031 was the way to go and ignorance was bliss.