analog_peninsula
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This is what happens when you shoot 120 grains of IMR 4350 out of your .500 A2 with a 23" barrel.
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Good one. Is that a Hannibal model ?This is what happens when you shoot 120 grains of IMR 4350 out of your .500 A2 with a 23" barrel.
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Looks like a great load for followup shots on dangerous game. Sure to give that charging buffalo second thoughts even if the shot is missed. Even an angry hurt animal is bound to give serious consideration before running into a flame thrower. Mega noisy too I'll bet.This is what happens when you shoot 120 grains of IMR 4350 out of your .500 A2 with a 23" barrel.
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You are on the right track. Yes, up to the pressure limit is reached.Pretty impressive. Just a random question for experienced reloaders, does faster powder reduce the fireball and give you more velocity for less powder ? Just spitballing here and thinking less of a faster powder might make more velocity with less unburnt powder ?
Yes it does. Ish. But the pressure curve is different as the peak pressure is reached sooner. And it could get into dangerously high pressures if too much of a too fast powder is used.Pretty impressive. Just a random question for experienced reloaders, does faster powder reduce the fireball and give you more velocity for less powder ? Just spitballing here and thinking less of a faster powder might make more velocity with less unburnt powder ?
Yes, it would probably not do much difference, but it will do some, even if the majority of the extra powder burns after the bullet has left the barrel.And then I guess a big fireball indicates unburnt powder. So the velocity ladder of that round would have flattened out before the 120 grains ie 115 to 120 would show little if any increase in velocity ?
570 gr @ 2450 fps and muzzle brake removed. Wow! Who's shoulder broke? Yours or the bison's?I used 110 grains of RL-15 with the 570-gr bullets (GSC FN and Barnes XLC, olde-style blue-coated)
in a 23" barreled .500 A2 for my hunting load.
Gave about 2450 fps MV (McGowen 1:10" twist, stainless, on a BRNO ZKK 602 in a McMillan stock).
Today I would choose Varget for better ThermoBallisticIndependence.
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That was iron-sighted and with the muzzle brake removed, just to be kind to my ears.
The 570-gr XLC broke an offside shoulder and the 5-1/2 y.o. bull turned to run on three legs.
Then the 570-gr GSC FN entered his rump and came out his throat, tail to tonsils, exited.
He dropped after two impacts at about 50 yards for each shot.
For my target load in a Ruger No. 1 .500 A2 with 27" barrel that I throated a little longer for the heavier 50 BMG bullets (McGowen 1:10" twist, stainless also)
IMR-4350 worked a charm.
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705-gr AAA Harlow bullet with 110 grains of that did about 2125 fps and
would put 3 bullets into 0.170" at 100 yards when I got lucky.
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A 5-mil holdover with that powder charge and the 750-gr Hornady A-Max would get me on paper at 942 yards, in a cow pasture.
I would choose H4350 for such plinking nowadays.
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Wonderful site and grate combination lolThis is what happens when you shoot 120 grains of IMR 4350 out of your .500 A2 with a 23" barrel.
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