- Sep 4, 2013
- Reaction score
From what I could find, the Underwood 10mm ammo comes in a bullet weight of 135-200 grain, and averages 1250-1600 fps, depending on the bullet. I don't know which one you got, but the The DoubleTap 10mm comes in 165-230 gr with a velocity of 1040-1400 fps.It's damn near impossible to find ballistic info on the 10mm Mag.Maybe it's a bit easier to fire than a 44 mag. That thing set me back 3 or 4 steps and my ears rang for a week because I didn't use ear protection. Like firing a hand held cannon.
The case length on the 10mm Mag is 1.250 vs the .44 at 1.285.
The diameter for the 10mm mag is.400 vs the .44 at .428 so they're actually pretty close.
Dont have a .44 mag but it sure would be cool to test the two against each other.
Obviously the .44 should be a tad more powerful.
The 10mm Magnum with a 200 grain bullet runs about 1450 fps, which would have 934 ft/lbs of energy, and a power factor of 290. To put that in perspective, I just loaded up 100 rounds of .44 magnum. I used a Hornady 240 grain XTP jacketed hollow-point behind 19.6 gr. of Alliant 2400, WLP primers, and Remington-Peters cases. Those were chronographed at 1332 fps, with 946 ft lbs. or energy, and a power factor of 302.
I didn't load those to the maximum allowable velocity, which would be 1500 fps but still, they're pretty stiff. So the 10mm magnum is pretty darned close to the .44 magnum.
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Great info To put this in perspective the max .41 mag round is the following: .41 Remington Magnum - Wikipedia
All pretty close. It really comes done to your personal preference.
|210 gr (14 g) JHP||1,560 ft/s (480 m/s)||1,135 ft⋅lbf (1,539 J)|