10mm for USPSA/IDPA shooting?

[zipper046]

Anyone here run a 10mm in the gun games? (USPSA Limited, Limited-10, Production, IDPA, etc.)

I've been doing some reading and many folks claim the 10mm has a flatter trajectory, can be more accurate then the .40 or .45acp, and pistols chambered for 10mm can handle heavy loads.

I reload for the .40 S&W (out of a G35, G23, HK USP, Para 16.40) and it sounds to me that reloading for the 10mm is a natural...can load it down to .40S&W velocities....or load it up for hunting...or find something in-between for the gun games and at the same time increase longevity of the gun and not work the brass too much.

Am I wrong here, or does the 10mm reloaded sound like a great round for just about anything?

Insights are sought.....

z-

[HiredGun77]

Am I wrong here, or does the 10mm reloaded sound like a great round for just about anything?

z-

You are not wrong. I believe this completely. I just bought another 1000 brass for mine.

[Fear Night]

Flatter trajectory between 9mm/.40/.45 vs. 10mm is a moot point under 25 yards.

[gary newport]

In IDPA, you'll be up against the 9 minimeter so you may want to develop a bunny fart load for your 10.

I can't think of any IDPA or USPSA stage I've shot where a slightly flatter trajectory would make much difference.

As far as the 10 being more accurate than the .45, :rofl:

[Beware Owner]

It's my belief that the two best current calibers are .357 Sig and the 10 mm. 9mm is the .357 Sig during puberty, the .45 when he's old, fat, and slow, the .40 when he started going to Bally's, a couple of years before he made it to bodybuilder status, now the 10 mm. You know that when you hit with either one, whether near or far, you hit good. You can't go wrong with either.

[Clyde]

Shoot what you like....


And just leave the 10MM brass - I'll get that :cool:

[Butch]

Well, the 10mm is easy to make 'major' with, pleasant to shoot in a G20, and the mag holds lots of ammo.....

The only downside was the G20's grip - just a little big to be comfortable enough to shoot and handle VERY well, but now that the SF frame is available, the G20 would seem to be a great thing for USPSA.

Might have to give it a try.



:patriot:

[RH45]

I know a few guys that shoot their 10mms for USPSA single stack division, once in a while, but, they really don't like losing their brass so thet don't do it often.

[MSgt Dotson]

I have a new Glock 20 I have debated using for Limited, but, the Glock 35 feels better in the hand to me, and, I have big hands at that!

[Epizza]

I use my G20 in IDPA with DT ammo before a major match then use my G34 in the major match. Shooting the G20 makes the G34 seem like a 22lr. Not that I think recoil is a problem in my G20.

[Jim Watson]

I know two guys who used to routinely shoot 10mm in IPSC and IDPA. One finally gave up and went to 9mm for cheaper ammo with less recoil; the other got on the police force and doesn't shoot matches any more. I don't know if the city lets him carry his G20 on duty.

[Duck of Death]

Shoot what you want, just remember recoil is NOT your friend. ;)

[joseywales]

Reloading cost is probably the biggest factor in 10mm not being used much in the USPSA game, with recoil a close second.

Sounds like you've got several .40's to choose from. Of those that you've listed, the G35 is found most often in the USPSA game. Very versatile, easy to shoot, customize, and cheap spare parts.

Just pick your favorite and get to a match.

[HiredGun77]

The USPSA major power factor minimum is 165. Calculated by:

Power Factor
Calculated power factor (Weight*Velocity/1000). NOTE: The IPSC rules specifically say not rounding upward. All digits after the decimal place are dropped.

A quick way to get minimum velocity for a power factor of 165 for any given bullet is to devide 165000 by the bullet weight. Example: 165000/230 = 717.3913fps

A 40 or 10mm is idling to make it. 135's @ 1222fps or 155's@1064fps 165's @1000fps or 180's @ 916fps is all is takes. A G20 with any of this ammo will not have much kick at all. Not really much need to be using 10mm really. A G35 make a lot of sence. Good capacity over a 45 if need be. If you already have the 10mm, rock on.

I would use Nosler seconds to keep the cost down.

[mpolans]

The USPSA major power factor minimum is 165. Calculated by:

Power Factor
Calculated power factor (Weight*Velocity/1000). NOTE: The IPSC rules specifically say not rounding upward. All digits after the decimal place are dropped.

A quick way to get minimum velocity for a power factor of 165 for any given bullet is to devide 165000 by the bullet weight. Example: 165000/230 = 717.3913fps

A 40 or 10mm is idling to make it. 135's @ 1222fps or 155's@1064fps 165's @1000fps or 180's @ 916fps is all is takes. A G20 with any of this ammo will not have much kick at all. Not really much need to be using 10mm really. A G35 make a lot of sence. Good capacity over a 45 if need be. If you already have the 10mm, rock on.

I would use Nosler seconds to keep the cost down.
Yeah, but keep in mind, if he's shooting USPSA Production (no Major scoring allowed) or IDPA SSP or ESP, he only has to make 125pf.

[Beware Owner]

Does anybody have experience shooting the 10mm with a ported barrel?

[Suburban]

A little secret among Glock shooters in the know is to plop a .40SW conversion barrel in a G20, and use that to shoot divisions where you need to make major. Recoil is milder than with a G22 or G35, you just have to figure out what recoil spring you want to run in the 20.

10mm is an underrated round, held back by high ammo and brass costs. I don't have the income to shoot 10mm, .38 Super or SuperComp, or anything exotic on a regular basis.

[kglocker]

Anyone here run a 10mm in the gun games? (USPSA Limited, Limited-10, Production, IDPA, etc.)

I've been doing some reading and many folks claim the 10mm has a flatter trajectory, can be more accurate then the .40 or .45acp, and pistols chambered for 10mm can handle heavy loads.

I reload for the .40 S&W (out of a G35, G23, HK USP, Para 16.40) and it sounds to me that reloading for the 10mm is a natural...can load it down to .40S&W velocities....or load it up for hunting...or find something in-between for the gun games and at the same time increase longevity of the gun and not work the brass too much.

Am I wrong here, or does the 10mm reloaded sound like a great round for just about anything?

Insights are sought.....

z-

10mm only has a flat trajectory because of the velocity of standard loads for that caliber. If you load it down to 40S&W power, I imagine the ballistics will be very close to that of a 40S&W...

[9x45]

There is no advantage to running a 10mm, otherwise all the GM's would do it, and they don't...