On Sat, 27 Jul 2013 19:49:54 -0400, Tom Gardner Mars@Tacks wrote:

On 7/27/2013 2:41 PM, Gunner Asch wrote:
On Sat, 27 Jul 2013 10:15:25 -0700, Larry Jaques
wrote:

On Sat, 27 Jul 2013 06:36:59 -0700, Gunner Asch
wrote:

On Fri, 26 Jul 2013 22:13:32 -0700, Larry Jaques
wrote:


A "Silencer that works on a 4,000 FPS bullet?

--
Cheers,

John B.



Sure, It's the size of a truck muffler though. And, no help for the
"crack".

ah...actually..its no bigger than about 1.75 in diameter and about 12"
long. All a silencer does is slow down the noise as the powder
pressure wave exits the barrel. A 223 for example..doesnt have a real
big bubble of gas when it exits the barrel. Just a high pressure one

And at 50 yrds..there isnt much of a crack. However there is
significant noise as the targets melon explodes. Like dropping a
watermellon from a 3rd story window. But oddly enough...it doesnt
echo much.

science is often wierd.

Go on YouTube and watch the size of the bubble as they shoot guns
underwater. The bubble of gas is surprisingly small.

Groovy, mon. Wow, the bypass from a wheel gun v. auto is amazing.
Half the velocity is lost, isn't it?

Not half..perhaps 5% at most. Vortex physics are beyond
me...but...thats the estimate.

In that case, it must be the losses in activating the slide which make
up the difference. The gas bubble at the barrel/cylinder was equal to
that at the muzzle on the revolver.

No..thats "recoil" operated , with very few self loading pistols being
gas operated.

On the Dan Wesson revolvers..where you could adjust the barrel gap..it
didnt make a big deal of difference...neasured in FPS..its
surprisingly small.

I don't have any experience with reloading handgun ammo, but do
reloaders use faster-burning and/or more powerful powder for wheel
ammo than that which is made for autos?

Nope. G

Well..thats not completely true, but largely similar or the same
powders are used in both revolvers and self loaders.

Gunner



Off the top of my head, I can't think of any revolver round that is high
pressure. Are there any? Maybe the new .32 magnums?

Define "high pressure"

41 Mag can go to 36,000 psi
357 Max can go to 40k
357 Mag can go to 36k
38 Super can go to 36k

the 9mm is 36k, the 32 H&R is only at 21k
\
The 44 Magnum is 36k

All of which are available in revolvers.

Given that many cartridges such as the 7x57 Mauser, 303 Brit, etc etc
are at 45K.....the 3006 at 50l,. the 308 at 62k.... the 300 Win mag
is at 60k, the 7 Mag is at 60-65k....shrug

As for self loaders...we have the above 38 Super at 36, the 40 AE at
40, the 45 Wildey at 40....shrug Generally Pistol but can be found in
revolvers. Hell the 50 AE is only 36k, lower than a Plus P 9mm.

My single shot pistols..such as the TC...357 Herret at 48k, the 223 at
53k, the 7 TCU at 47k etc etc

So what is "high pressure"? My Hot Street Loads (tm) for my daily
carry 1911 are pumping out at 20k..and a factory +P can be at 23k

http://www.handloads.com/misc/saami.htm
http://en.wikipedia.org/wiki/Copper_units_of_pressure

Gunner





--
""Almost all liberal behavioral tropes track the impotent rage of small
children. Thus, for example, there is also the popular tactic of
repeating some stupid, meaningless phrase a billion times" Arms for
hostages, arms for hostages, arms for hostages, it's just about sex, just
about sex, just about sex, dumb,dumb, money in politics,money in
politics, Enron, Enron, Enron. Nothing repeated with mind-numbing
frequency in all major news outlets will not be believed by some members
of the populace. It is the permanence of evil; you can't stop it." (Ann
Coulter)