@ 4000 fps, spin is:
12 Twist= 240,000 rpm
9 Twist= 320,000 rpm
8 Twist= 360,000 rpm
I seem to remember reading that Hornaday redlines their bullet at about 275,000 RPM, though I can't find that reference on their website. May have to call C.S. to get it.
Using a stock Savage barrel, with it's anything but hand lapped, more like railroad track rifling, that the bullets hold together for you is amazing.
FWIW: I shoot the 53 g V-Max (great B.C) out of a 26 inch Criterion 8 twist using 25.2 gr. IMR 3031, L.C. brass and get 3350 fps and extremely good accuracy. The 53 gr V-Max really has some legs due to its B.C.
I'll run some numbers through a ballistics calculator and see which one is superior at say, 500 yds. These are based upon 4000 fps which is for comparison only. You can't get 4000 fps out of a 53 gr in a 223 Rem.
35 gr.V-Max Velocity/drop at 500 yds = 907 fps, -92.8 inches
53 gr. V-Max Velocity/drop at 500 yds = 2278 fps, -28.6 inches
As you can see, raw speed is only one consideration. I can also tell you that at 500 yds, the 53 gr makes easy work of 4 inch clays and is waaaay better at handling winds.
53 gr. V-Max: Velocity/drop at 3350 fps, 500 yds is 1837 fps, -44.4 inches
I hope this helps.
12 Twist= 240,000 rpm
9 Twist= 320,000 rpm
8 Twist= 360,000 rpm
I seem to remember reading that Hornaday redlines their bullet at about 275,000 RPM, though I can't find that reference on their website. May have to call C.S. to get it.
Using a stock Savage barrel, with it's anything but hand lapped, more like railroad track rifling, that the bullets hold together for you is amazing.
FWIW: I shoot the 53 g V-Max (great B.C) out of a 26 inch Criterion 8 twist using 25.2 gr. IMR 3031, L.C. brass and get 3350 fps and extremely good accuracy. The 53 gr V-Max really has some legs due to its B.C.
I'll run some numbers through a ballistics calculator and see which one is superior at say, 500 yds. These are based upon 4000 fps which is for comparison only. You can't get 4000 fps out of a 53 gr in a 223 Rem.
35 gr.V-Max Velocity/drop at 500 yds = 907 fps, -92.8 inches
53 gr. V-Max Velocity/drop at 500 yds = 2278 fps, -28.6 inches
As you can see, raw speed is only one consideration. I can also tell you that at 500 yds, the 53 gr makes easy work of 4 inch clays and is waaaay better at handling winds.
53 gr. V-Max: Velocity/drop at 3350 fps, 500 yds is 1837 fps, -44.4 inches
I hope this helps.