OrneryBear
Well-Known Member
- First Name
- Charles
- Joined
- Sep 19, 2022
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- 2
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- 956
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- Location
- Central OH
- Vehicle(s)
- 23 Sarge JLUR 6spd
Great to know, thanks I learned something! I also said a big load 357, so something like a 158 grain. Ive been shooting since I was 7 but I will easily admit its not until recently I started getting more into the ins and outs of grains/velocities and different calibers. Had to since my 77yr old father got into reloading in retirement (he retired for 6months before going back to work for the air force lol). So I try to take in all his giant “Im an engineer” reloading spreadsheets he wants me to look at with him. Long story short Im still learning.I have been a long time shooter. I love the 45. It is great on human size animals, I do shoot bowling pins and steel out to 50 yards, but yeah it is getting to its limit. People commonly hunt hogs and big game at 100 yards with the 10mm round.
The 10 mm round that I will use is the Underwood Ammo 200 grain bullet at 1250 fps.
So on the power factor formula looks like weight of bullet X speed.
The 10 mm round that I will be loaded a 200 grain bullet shooting at 1250fps with has a power factor of 200X1250= 250,000
A 45 is 230 grain bullet at 800fps = 184,000
A 357 is 125 grain bullet at 1444 fps out of a 5 in barrel revolver is 125x1444=180500
That should give you an idea between the rounds.
So my Alaskan Survival Derringer shoots a 45/70 rifle cartridge. 405 grain bullet at 1800 fps. 729,000 for comparison. Not sure how much speed it looses out of the short barrel, so it is probably not that high, but it does blow fire about 12 ft out the muzzle in low light and you can't see shit for a few minutes.
Mind you it is zero fun to shoot. Like zero. I have owned the gun for over 20 years and it has 22 rounds through it. Like put a leather glove and and hold on. It is ZERO fun to shoot, yet there has been a couple friends that have shot it once over the years.
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