10mm questions.


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Demitrios
October 17, 2009, 02:02 PM
I've been looking into getting a few things done to my RZ-10 and I was hoping I could have some feedback/suggestions. Number one I'd like to pick up a new recoil spring, the one I'm running is a 20# spring and I really don't know how long it's been used since I bought my gun used. Anyone have thoughts or opinions on the EFK's dual springs, the Fire Dragons? The spring is for firing full power 10's.

What's a good bullet to use when reloading 10mm if I'm carrying. I'd want something that wouldn't over penetrate but would greatly expand. Is there a real benefit that Powerball has over hollow point?

What are some ways to reduce recoil? I know a new spring would help, but I don't want to batter the frame too badly due to the springs strength. I've been told a good firing pin stop is a good idea.

New trigger, I like what SVI offers, how it can be swapped out.

I would like to do some basic tuning, any suggestions on where to look first? Obviously a gun smith is a better idea but I'm talking about something very basic.

I'm really looking for any information you can give me here, even if it's an answer to a question I haven't even asked. Thank you guys.

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BlindJustice
October 17, 2009, 03:25 PM
Wolf Springs would be a place to get a new recoil spring

Try a medium weight Speer Gold Dot JHP for expansion

Double Tap - started with full power 10mm AUto loads

Reeds Ammunition & Research offers a wide range
of loads, several Hornady XTP loads.

Brownells is a great place for gunsmithing tools, like
a set of hollow ground screwdrivers, a pistol vise etc.

EGW offers a wide variety of forged replacement or
upgrade parts.

R-

harrygunner
October 17, 2009, 06:17 PM
Speer Gold Dots open, but some evidence suggests too much, at real 10mm speeds.

I've moved to XTP in my 10mm handguns. Hornady states the 180gr XTP is designed for speeds between 700 and 1500 ft/sec. The 200gr, between 700 and 1200 ft/sec.

BlindJustice
October 17, 2009, 06:38 PM
FYI - I collected current prices of a couple of known
get the 10mm stuff that is full power.

Note: I like the Hornady XTP JHP as well. I wish it was
available 165 gr. but it's 155 gr. or 180 gr. and
my .40 cal doesn't work well with 180 gr. or heavier
bullets. I shoot .400 CorBon and the short neck of
the bottle neck limits to a certain length limit
My 2 loads from Reeds Ammo & Research ( R.A.R.)
are ( Bar Sto .400 CorBon in 1911 )
1 - 155 gr. Speer Gold DOt @ 1,400 FPS
2 - 155 gr. Hornady XTP @ 1,350 FPS
The Speer GD is overdriven for it's design
the XTP is being driven hard enough to reliably
open up and penetrate farther than the GD. in
my non-scientific wet magazines test.


Ammo 10MM Auto
--------------------------------

Double Tap is about the same as their .45 ACP +P
at $38.95 per 50

Reeds Ammo & Research
10MM Auto
--------------------------------
135 gr. Nosler HP @ 1,500 FPS
$26.52 per 50

155 gr. Hornady XTP @ 1,400 FPS
$ 29.17 per 50
165 gr. Speer Gold Dot @ 1,350 FPS
$ 31.55 per 50

180 gr. Hornady XTP @ 1,250 FPS
$ 29.65 per 50
180 gr. Speer Gold Dot @ 1,250 FPS
$ 32.05 per 50

200 gr. Hornady XTP @ 1,100 FPS
$ 34.50 per 50

Range Ammo no velocity listed
180 gr. TMJ-FP
$ 35.52 per 50

Demitrios
October 19, 2009, 06:21 AM
Great info guys, keep them coming! Harry you said that a bullet can open too much? How is that such a bad thing? I mean I could see under penetration being a problem is that the only reason?

s0nspark
October 19, 2009, 11:03 AM
Actually opening too much would lead to OVERpenetration... the "petals" would fold all the way back and you'd essentially have something like a FMJ projectile at that point.

I'm currently using the 165gr Gold Dots in my G29... Georgia Arms loads, though, so they are not loaded as hot as the DoubleTaps... I have some Barnes XP DoubleTaps on order, though, and will be curious to see how they compare. I've heard great things about them (well, the Corbon DPX load that is similar) but they certainly cost enough... :-/

harrygunner
October 19, 2009, 03:23 PM
Here's a link to a discussion on Gold Dots at speeds near their upper performance range.

http://www.ar15armory.com/forums/Pic-Recovered-10mm-JHPs-t43253.html

freakshow10mm
October 19, 2009, 04:07 PM
Just use a conventional spring and not the dual springs. Springs don't solve problems they create them. Use a 20lb Wolff spring and change it out at regular intervals.

My carry load is 180gr Gold Dot handloaded to 1300fps. I have also carried a 180gr XTP to 1300fps as well. Right now I'm in a Gold Dot kick.

Demitrios
October 19, 2009, 04:08 PM
If you don't mind me asking why are dual springs bad? I have heard that if the spring is too strong it can batter the frame on its travel back to battery on top of not cycling properly.

freakshow10mm
October 19, 2009, 04:12 PM
Why do you think dual springs would help? Why change something against conventional wisdom?

bullturkey
October 19, 2009, 06:10 PM
Let me jump right in this with no flame suit on. To me the 10mm is a high performance round. Under-rated by many. If I was a hog hunter this would be my gun of choice. In the self defense mode full house 10mm rounds are not controlable by most mortals and over penetration is the nature of the beast. I have to ask myself why? Just get a caliber that was designed for it"s intended purpose.

s0nspark
October 19, 2009, 06:53 PM
Let me jump right in this with no flame suit on. To me the 10mm is a high performance round. Under-rated by many. If I was a hog hunter this would be my gun of choice. In the self defense mode full house 10mm rounds are not controlable by most mortals and over penetration is the nature of the beast. I have to ask myself why? Just get a caliber that was designed for it"s intended purpose.
Well, I won't flame you for that... :-)

10mm is definitely not for everyone... and perhaps more than most calibers, it requires regular practice to stay up with.

However, it does allow the widest range of loads of any semiauto caliber, which makes it great for the "one gun" types. Care must simply be given to choosing the right load for where the gun may be used...

Demitrios
October 20, 2009, 01:08 AM
Alright, this is all great info. Now I'm not saying a dual spring is superior of inferior, I'm just asking what are the pro's and con's of one. Also I'd like to know what barrels are good to convert it to .357 SIG and .40 S&W (although I don't really see my need for .40 S&W since all I really have to do is download my 10mm's a bit). Also how many pounds should the recoil springs be rated at? What are you thoughts on shock-buffers? I've seen metal, rubber and plastic ones. Oils, greases, lubricants, solvents, etc. what are you prefered makes and why? This gun is on the 1911 platform and she's my carry piece, any other tidbits of advice to keep her up and running in tip-top shape?

Demitrios
October 20, 2009, 02:16 PM
What about guide rods? Are there any that are better than another? I've heard of mercury filled guide rods, two piece guide roads, short, long, able to clean your garage and do your taxes guide rods. Any opinions on what's good, bad or ugly?

s0nspark
October 20, 2009, 02:19 PM
What about guide rods? Are there any that are better than another? I've heard of mercury filled guide rods, two piece guide roads, short, long, able to clean your garage and do your taxes guide rods. Any opinions on what's good, bad or ugly?
My personal preference is always for the standard 1911 guide rod... I like being able to break the gun down without extra tools.

glocktoys
October 21, 2009, 11:21 AM
i have the 2 spring efk in my glock 20 and shoot light and heavy loads and functions great (glock hates me for putting it in). the .40 s&w barrel is one i have as .40 s&w is cheaper to shoot at idpa and a .357 Sig is coot too but cost too much for ammo up north.heck i just got a threaded 10mm barrel for the glock 20 and plan to suppress it (have some winchester 180gr jhp sub-sonics to try). love the 10mm just need a rifle in it i can afford. i shoot 180gr out of the glock and shoots great (hydra shok and win) but want to try some double tap some time (anyone want to donate me some to try??? LOL). keep up the info and long live the 10mm auto

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