Glock 20 10mm opinions

[jeepmor]

You guys need to listen to Clark. This guy is a serious nut when it comes to reloading and pushing, finding and exceeding limits. A serious nut, I don't know how he does it safely, but I've read of several instances of his willingness to go where none of us handloaders will. He has admittedly grenaded a couple guns.

I'm not advocating doing what he does, but I am saying he has done the work to know what he's talking about. Go visit the handloading section and search his handle, this guy does some seriously over the top loads.

jeepmor

 

[sniper350]

Marty I like your style !!

I use an old S&W 1006 10mm ......... its heavy and bulky, but it will safely shoot the hottest 10mm ammo I can find

Hard to imagine a 40 S&W Glock matching the power I have seen screaming from my 1006

JF.

 

[Desertscout]

Well, except that the top end of .45 GAP (400 ft./lbs) is the bottom end of .45 ACP (up to 643 ft./lbs a la DoubleTap). So, if 240 ft./lbs is meaningless, then yes, they are equal.

The same goes for .40SW and 10mm.

I didn't know we were talking about custom or specialty ammo. One can reload and make any round do things it wasn't particularly designed to do.
Your argument is pretty lame. If you compare apples to apples the GAP and the ACP are pretty much ballistic twins. If you want to take one and try make it outperform the other, it doesn't take a genius to do that. Compare factory loads out of barrels of the same length and see what you come up with.

 

[R&J]

Seven For Sure said...

"I've had one for the last five years or so. You should get one and some DT. You really need the DT if you want to take advantage or true 10mm ballistics."

That's certainly true! Here's how some of the DT 10 mm stack up against their .357 magnum loads:

1) .357 Magnum, 1600 fps, 710 ft. lbs., 125 gr Gold Dot

2) 10 mm, 1600 fps, 767 ft. lbs., 135 gr Nosler

3) .357 Magnum, 1400 fps, 688 ft. lbs., 158 gr Gold Dot

4) 10mm, 1475 fps, 750 ft. lbs, 155 gr Gold Dot

5) .357 Magnum, 1200 fps, 640 ft. lbs., 200 gr Hardcast

6) 10mm, 1300 fps, 750 ft. lbs., 200 gr Hardcast

Number two is an awesome SD load that won't over penetrate.

As a trail load, number six will handle hogs and deer, and smaller bear.

Plus there's the whole sixteen shots thingy!

With all respect to .40 S&W, it's 10-Lite.

--Ray

 

[Soybomb]

You guys need to listen to Clark. This guy is a serious nut when it comes to reloading and pushing, finding and exceeding limits. A serious nut, I don't know how he does it safely, but I've read of several instances of his willingness to go where none of us handloaders will. He has admittedly grenaded a couple guns.

Now I'm not a reloader but its something I have interest in doing sometime soon. This confuses me though. Is the guy that blows up his guns really the guy to listen to for safe, expert advice? It seems like the real skill would be coming up with really great results while reading the signs over pressure, sort of like double tap's loads. Repeatedly pushing guns to their failure point just seems to indicate someone that can't tell when that failure point is approaching.

 

[roscoe]

I didn't know we were talking about custom or specialty ammo. One can reload and make any round do things it wasn't particularly designed to do.
Your argument is pretty lame. If you compare apples to apples the GAP and the ACP are pretty much ballistic twins. If you want to take one and try make it outperform the other, it doesn't take a genius to do that. Compare factory loads out of barrels of the same length and see what you come up with.

My point being that there is a natural constraint on the .45 GAP, it being shorter. There is no way to load a .45 GAP to the levels of hot .45 ACP. Just look at the .45ACP+P offerings from major manufacturers. Federal, for example, gives over 520 ft/lbs. in the +P. Find me one GAP load that does that.

Don't get me wrong, I have nothing against the GAP, but folks who try to claim the .40 is equal to the 10mm, or the GAP to the ACP, don't make sense.

 

[Clark]

I have seen people open locks like they were not there.
I have seen people who can tell me what cards are in my hand.
I have seen Steve Irwin hold a rattlesnake next to his nose.
Reinhold Messner climbed Mt Everest solo.

All not what I would have expected.

Likewise, I see some people do not expect that the 10mm cannot keep up with the 40 S&W.

That is becuase they have not spent much time experimenting with how much pressure it takes to make the primer fall out of various cartridges.

CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The High Road, nor the staff of THR assume any liability for any damage or injury resulting from use of this information.

The 8x57 is registered at 35,000 psi and the 270 at 65,000 psi, but they are the same case head with the same limit ~ 65,000 ~ 72,000 psi.

The 38 S&W is registered at 14,500 psi, but can take ~85,000 psi.
The 10mm is registered at 37,500 psi, and can take ~ 45,000 psi
The 40 S&W is registered at 35,000 psi and can take ~65,000 psi

All those cartridges cases are made from Using mechanical properties for C26000 brass (cartridge brass) Temper - H06 Tensile yield strength - 65,300 psi.

The difference is the shape. Using 65ksi brass in one shape, the 10mm, the poorest case I know of, can less chamber pressure than the brass tensile yield, but in the 38S&W, the cartridge can take more pressure than the brass tensile yield, again, becuase of shape.


The LARGE primer pocket on a 10mm is .2100" inside diameter.
The SMALL primer pocket of a 40sw is .1745" inside diameter.

The extractor groove of .335" makes the brass case wall .0625" thick in the 10mm
The extractor groove of .335" makes the brass case wall .08025" thick in the 40sw



Of course, holding rattle snakes next to your nose, solo climbing Mt Everest, and gun overloading experiments should be left to those who know how to manage the risk.

 

[waffentomas]

Seems this thread is wandering a bit...

To answer your question, I have gotten great accuracy with my Glock 20 and 6" Glock hunting barrel - it averages about 1/2" larger groups at 25 yards than my DW RZ-10 (pre-CZ) and my Wilson CQB 10mm, from a bench rest.

I took a pig with it a number of years ago and it laid her out with a handload AA#9 and Hornady 200gr XTPs, from 50 yards away.

This gun will work great as a deer pistol.

Tom

 

[Vanzpp]

I don't know about the 20, but I do own a G29. I bought an extended barrel from Storm Lake to get G20 velocities from it. I love mine!