Pulled my copy of Sharpe “Complete Guide to Handloading” out, 1937 edition.
He list 344 grain lead bullet 14.0 Unique as 1335 FPS 11,700 PSI. Velocity not needed for that match We wanted lighter. Routine was drop the charge until the sound did not “crack” indicating sub sonic. Wish I could tell you exactly what my charge was am sure it was under 10 Grains
William
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