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...aaannd the adventure begins... |
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Goosic 
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Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 7851 |
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 Topic: ...aaannd the adventure begins...Posted: March 26 2023 at 10:44am |
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I happened to find a batch of 168grn .312" FMJBT's recently. I have been researching a safe starting/minimum charge weight using VihtaVuori N540 up to a maximum charge and have come to the decision that a minimum of 40.1 to a maximum of 42.5 will keep me in that safe "Golden Zone." The calculated FPS for the minimum should be 2390 and the maximum should be 2585.
Setting the OAL to 3.085" will keep the rounds .084" from the rifling while maintaining safe tolerances for the chamber pressures and assisting in better than normal accuracy. If this round works as anticipated, I believe I may have found the accuracy/target round the venerable Lee-Enfield has needed for a long while...
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Dragunov
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Joined: November 12 2021 Location: Melbourne, FL Status: Offline Points: 192 |
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Posted: March 26 2023 at 11:19am |
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Pray tell, what brand and where did you find these bullets?
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Goosic
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Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 7851 |
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Posted: March 26 2023 at 7:17pm |
They were in a box marked 7.62 ×54R. There's only 100 of them but, they all weigh between 168.2 through to 169.4. The box was part of a group of items that are sold second-hand at my local gunshop...
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Dragunov wrote: