Quote:
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Originally Posted by OP
"...500 grain Hornady interlock... [OAL] 2.55..."
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Try 20gr of Accurate 5744
Note that case volume is adjusted to my experience w/ 5744 under a 425grLFNGC.
This case volume apparently acts to lower pressure/velocity calculations slightly, as associated
w/ a lead bullet and matching my Oehler35 actual speed measurements.
Using a jacketed Interlock and reducing case volume to QuickLoad's default 79.0gr H₂O
would give us ~2,000 psi more pressure and muzzle velocity of 1,070 -- still subsonic.)
This likely brackets the actual result.
