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Calculators for Barrel Twist Rate

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	Enter the following
Bullet Length	in
Bullet Diameter	Select... 0.172 0.184 0.194 0.198 0.204 0.222 0.223 0.224 0.227 0.228 0.234 0.236 0.2425 0.243 0.245 0.251 0.257 0.26 0.261 0.263 0.264 0.265 0.266 0.267 0.27 0.277 0.284 0.285 0.287 0.298 0.3 0.301 0.306 0.307 0.308 0.3085 0.309 0.31 0.311 0.312 0.313 0.314 0.315 0.318 0.319 0.32 0.321 0.322 0.323 0.3235 0.324 0.325 0.327 0.329 0.33 0.333 0.338 0.348 0.35 0.351 0.352 0.354 0.355 0.356 0.357 0.358 0.359 0.36 0.363 0.364 0.365 0.3655 0.366 0.375 0.376 0.377 0.379 0.4 0.401 0.402 0.405 0.406 0.408 0.409 0.41 0.411 0.412 0.413 0.414 0.416 0.418 0.422 0.423 0.427 0.428 0.429 0.43 0.431 0.435 0.439 0.44 0.441 0.445 0.446 0.45 0.451 0.452 0.454 0.456 0.457 0.458 0.459 0.468 0.472 0.474 0.475 0.476 0.483 0.488 0.495 0.499 0.5 0.501 0.505 0.509 0.51 0.512 0.515 0.53 0.535 0.55 0.562 0.575 0.58 0.583 0.584 0.585 0.618 0.62 0.7 0.735 in(")
Muzzle Velocity	fps
Optimum twist is 1 in	in (")
Messages

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If the rifling twist is one turn in	6" 7" 8" 9" 9.5" 9.75" 10" 11" 12" 14" 16" 18" 20" 22" 24" 26" 28" 30" 38" 48" 50" 60" 66" 80" 90" 100" 110" 120" 130" 140" 150" 160" 170" 180"
And the bullet diameter is	Select... 0.172 0.184 0.194 0.198 0.204 0.222 0.223 0.224 0.227 0.228 0.234 0.236 0.2425 0.243 0.245 0.251 0.257 0.26 0.261 0.263 0.264 0.265 0.266 0.267 0.27 0.277 0.284 0.285 0.287 0.298 0.3 0.301 0.306 0.307 0.308 0.3085 0.309 0.31 0.311 0.312 0.313 0.314 0.315 0.318 0.319 0.32 0.321 0.322 0.323 0.3235 0.324 0.325 0.327 0.329 0.33 0.333 0.338 0.348 0.35 0.351 0.352 0.354 0.355 0.356 0.357 0.358 0.359 0.36 0.363 0.364 0.365 0.3655 0.366 0.375 0.376 0.377 0.379 0.4 0.401 0.402 0.405 0.406 0.408 0.409 0.41 0.411 0.412 0.413 0.414 0.416 0.418 0.422 0.423 0.427 0.428 0.429 0.43 0.431 0.435 0.439 0.44 0.441 0.445 0.446 0.45 0.451 0.452 0.454 0.456 0.457 0.458 0.459 0.468 0.472 0.474 0.475 0.476 0.483 0.488 0.495 0.499 0.5 0.501 0.505 0.509 0.51 0.512 0.515 0.53 0.535 0.55 0.562 0.575 0.58 0.583 0.584 0.585 0.618 0.62 0.7 0.735
And the velocity is	fps
the maximum bullet length

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Submit

	Enter the following
Amount of MOA required
Rail Length (exact)	in(")
Amount to mill off	in (")
Messages

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