American Handgunner Jul/Aug 2011 - Jeffersonian

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YouTube Search: TACLLET
http://www.youtube.com/watch?v=kPHVZ97kL6k
and I would hunt ground squirrels in
the forest around our home. I’ve been
reloading since I was 10, graduated first
in my police academy class and also
have an IQ of 160 and change. Yeah, I
know, some of that is just bragging, but
it builds my case, bear with me.
Recently, a very well known writer
put into print the awesome power of
some handgun bullets, some reaching
over 100,000 RPM … screech! I’m
not going to embarrass anyone with
names, so please no flamers. I waited
for someone else to cry foul before I
wrote this but alas, I am alone. I’ve done
the math attempting to find a result anywhere
near 100,000 RPMs and it’s just
not possible. If you take a bullet and
push it down a barrel of 1:16" your bullet
is going to leave the barrel traveling
one revolution for every 16" of travel,
eliminating gravity, drag and associated
effects. I have tried this with the fastest
twist currently used by us, which is 1:7".
I will gladly eat my crow with
Tabasco sauce if someone can show me
the error of my ways.
Philip Sturgill
Via e-mail
Thanks for your nice comments about
Handgunner, Phil, but I hope you like
your crow medium-rare! Get out the salsa
because I’m afraid that “famous” gun-
‘riter was correct. Many bullets (even
the lowly .45 ACP) go tens of thousands
of RPMs and some rifle rounds can hit
250,000 RPM or faster! The very simple
formula of MV (muzzle velocity) x (12
÷ twist rate) x 60 = RPM. So, a bullet
traveling 2,800 fps from a 1:8 twist rate
barrel looks like this: 2,800 x (12÷8) x 60
= 252,000 RPM. So, let’s say a lowly .45
ACP is going 850 fps from a 1:16" barrel,
the RPM is: 850 x (12÷16) x 60 = 38,250
RPM. Damndest thing, ain’t it? So Phil,
let me know how that crow tastes, eh?
Thanks for being a good sport. RH
Products That Protect
Tuff TacLet ad.indd 4
2/17/11 1:42 PM
Make My Day!
So I started reading these cool posts
online about people racking their slides
1-handed in an emergency. They all
stressed practice in doing so in case
you ever need to do it for real in the
really, real world. 

So I got to thinking,
“OK, I can do this!” I reached under the
bed for the gun I keep there in case of
emergencies, but it was too dark and I
couldn’t find it. I got a flashlight from
the garage, once I found it, and then I
could see the gun lying about halfway
under the bed in a pile of dust bunnies.
I tried to reach in and grab it but it was
just out of reach. Finally, I used my
wife’s neck massager and was able to
drag the gun out. 

I had to blow a lot of
14 WWW.AMERICANHANDGUNNER.COM • JULY/AUGUST 2011