Kibler's Longrifles Knowledge Base

What ball diameter, patch, and powder load should I use for a .40 caliber rifle?

A .40 caliber rifle uses either a 0.390 ball with a 0.015 or 0.018 patch, or a 0.395 ball with a 0.012 or 0.015 patch. Powder load is 35 to 55 grains.

Category: Building & FinishingLast verified: 2026-07-25

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