Here are the technical details from Bubba Bullets:

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Typo below: 402.0" was supposed to be "402.0 grains"
Shortening a 1.405", 404-gr bullet to 1.400" resulted in 402 grains of bullet weight, a rough guide:
Minus 0.005" of full diameter bullet base length = minus 2.0 grains of bullet weight.
That works for a 400-gr XTSX whether made from either 500-grain TSX or 450-grain TSX.

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Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
THE WALKING DEAD does so remind me of Democrap voters. Donkeypox.