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Burn rate, barrel length, bullet weight, twist rate


9/45

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Does anyone know where there is info about how these relate to each other?

Thanks

See link below for some of the info you are looking for. Not really in depth and directed toward pistol, a lot will depend on what you are trying to achieve.

Barrel twist info

MDA

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Generally, slower burn rate powders allow using more to provide more gas

that can commonly utilize a longer barrel better

Longer barrels usually equate to higher velocity

Bullet weight - heavier = slower in a given cartridge

Twist - heavier (longer) bullets normally need a faster twist, lighter (shorter) less twist

though higher velocities will allow slower twist rates

Most commonly seen twists are geared to the heaviest bullet normally seen for that bore/cartridge

These are generalities, not absolutes.

More information on what you are working with might allow more insights.

Guy

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