TRUE OR FALSE >>> SOME RIFLE BULLETS CAN SPIN @ MORE THAN
250,000 RPM<<<< with a 1 in 9 twist rate ?
TRUE OR FALSE >>>> air Gauging a rifle Barrel will tell you how much air the barrel will hold <<<. 
Sometimes ammo will forget to produce a recoil & upon remembering, they will throw it in a bit late. It depends how old the ammo is. The older we get, the more we forget
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V=3,14159 [d/2] 2 h
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A small bullet -mass to shooter-mass ratio results in a low recoil velocity although the force and momentum are equal.
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Bullet proof vests will leave you unharmed. Bad guys plan to shoot you repeatedly with their AK-47s, but you have an ace in the hole: a bulletproof vest.
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Don’t blame the bullets or the guns. They are just the messenger. Blame the person sending the message!
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Hopefully he is actually replying to someone who has already sent a message. (Self-Defense)
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@Todd30 both parts of that statement are false.
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@Todd30 - got into spin info because I was pushing the limitations on BULLETS that were shedding their Jackets. The first time I saw it took me a while to figure it out. The targets had micro cuts around the bullet hole in the target. It’s hard to Believe that a bullet can spin that fast. Once you start going over 35,000 rpms strange things happen. Especially with a one and seven twist rate. THANKS
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True or False :
When or if you fire a Kimber Ultra Carry II ,.45 w/ Crimson Trace, on Mars it will propel you backwards if you jump up at the same time…
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Umm, false.
Ma Deuce on the other hand…
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@Bob48 >>> FALSE >>> can’t have ignition without oxygen. ( correction re: Todd )
You can have ignition w/ oxygen but no jumping too high on that planet >>>>
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@NATHANIEL21 >>> He said 45 cal. Not Something bigger than the 50 cal. Bmg.
TRUE OR FALSE ??
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The highest atmospheric density on Mars is equal to the density found 35 km (22 mi) above the Earth’s surface and is ~0.020 kg/m3. You would not be light weight.
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@Todd30 >>> as long as your up there, what about oxygen on Mars ??
Because it brings up the question about ignition IE : cartridge primer, or does the primer create its own oxygen like say magnesium ??? 
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Mars atmosphere is made up of;
95% by volume of carbon dioxide (CO2
2.6% molecular nitrogen
1.9% argon
0.16% molecular oxygen
0.06% carbon monoxide
but,
Gunpowder contains its own oxygen so the bullet will have no problem being accelerated out of the barrel of the firearm .
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That was a poke at the anti-gun phrase that “guns kill people” but I’m with you @Shamrock
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it does claim to be bullet “proof” 
maybe more so resistant
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To shoot around objects use arm motion to curve the bullet while firing.
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