This is from Wikipedia;
"The common rifling twist rate for 7.65 Parabellum is 275 mm (1 in 10.83 in), 4 grooves, ø lands = 7.62 mm, ø grooves = 7.83 mm, land width = 3.05 mm and the primer type is small pistol."
Which would stabilize a 150 grain bullet. ?quien sabe?
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