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i second the motion about "some bores are just faster than others" i HAD a savage axis that wouldn't show any pressure signs at all until you surpassed book max velocities by nearly 100ft/s with several powders and bullet combos
it kinda spoiled me to tuning to a desired speed without reaching book max load while surpassing book max speeds at times. and that from a 22" barrel where all the testing was in 24" test guns... go figure.
that gun just didn't have enough twist for what i do so it's gone now.
i have no doubt that some pistols will do likewise
and then there is the other end of the same spectrum
my ar-10 243 with 24" tube can never reach published speeds... the pressure just gets too high first. sad.
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