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Old 09-27-2012, 00:06   #41
dm1906
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Quote:
Originally Posted by MichiGun Hunter View Post
There is a way to keep it "pistol" fellas. At least here in Michigan. UTG makes a folding stock adaptor. i think it is called the model 47 side folding adaptor. It was $20 shipped to my door. With this in use, the Mech Tech is under 30" in total length. It can also still be fired from the folded position. And barrel is 16". By Michigan law, im gonna wack and stack the deer with my registered Glock 20!!!!

dm1906: Also i am curious as to what factory ammo you are using that is "dead nuts" out to 150 yards? I myself handload some very hot 180gr XTPs. It is dead nuts out to 100 for me all day long. At 150 it still throws one hell of a group. But it is low by about 6-7 inches. I have found the 10mm, as most pistol ammo does, drops pretty fast after 100 yards. I believe thats why people say pistol caliber carbines are good 100 yard guns. With correct hold over i have become very good out to 150.

drsjr1969: I would be interested to see if your results from 150-200 yards are the same as mine. Please report.


Nate
Accurate, as in, repeatable, consistent accuracy. It drops, of course. Curious, we found, is the POA is very close at 50' (originally sighted) and 150 yds. It would likely be very different if sighted at 50-100 yds. I don't have anything previous to base it on, so we're still building data. I'll have to work the trajectory calculator to confirm, but it's on, none the less. All the distant shooting was with the dot sight, so the peeps may open up a bit. I may have to try a scope, just for S&G's. The weapon shoots straighter than the shooters, for sure. Ammo is handloaded various bullets, loaded to factory velocities. Coming up will be some dedicated carbine rounds. Slower powders that don't normally work ideally with short barrels.
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Old 09-27-2012, 09:06   #42
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Quote:
Originally Posted by dm1906 View Post
No slide wear. As said above, once locked in, all the firing action is in the upper. The lock is against a hard rubber block, so it stays tight once locked. The Glock frame is only a feeder, handle and trigger. The "Glock Block" (fits over the locking block) is the ramp that feeds rounds to the chamber from the mag.

My son's G22 was a police academy whore for years. Probably in the neighborhood of 30K+ rounds through it (just a guess, as it's probably a lot more than that). It's all original, slide is still tight, and it shoots as straight as any.

Since he got his, the 10mm version made it to my short list....
Also quite EXCELLENTLY worded information on the mating dynamics. Thank you, dm...

Yes, its definitely on my short list... MMM man, I'd love a setup like the one on the first page.
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Old 09-27-2012, 09:07   #43
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Quote:
Originally Posted by dm1906 View Post
Accurate, as in, repeatable, consistent accuracy. It drops, of course. Curious, we found, is the POA is very close at 50' (originally sighted) and 150 yds. It would likely be very different if sighted at 50-100 yds. I don't have anything previous to base it on, so we're still building data. I'll have to work the trajectory calculator to confirm, but it's on, none the less. All the distant shooting was with the dot sight, so the peeps may open up a bit. I may have to try a scope, just for S&G's. The weapon shoots straighter than the shooters, for sure. Ammo is handloaded various bullets, loaded to factory velocities. Coming up will be some dedicated carbine rounds. Slower powders that don't normally work ideally with short barrels.
Sounds right. I have a good, easy to use tool to run that trajectory if you don't have one... But I suspect you do.

I wonder how much extra velocity handloading can get the 10mm up to...
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Old 09-27-2012, 13:37   #44
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Originally Posted by nickE10mm View Post
Sounds right. I have a good, easy to use tool to run that trajectory if you don't have one... But I suspect you do.
I do. I don't have a lot of interest in the .40, and really don't want to start another project. In the meanwhile, the damn thing is like peanuts! Just can't stop shooting it!

Quote:
I wonder how much extra velocity handloading can get the 10mm up to...
THAT is on the agenda. There are limitations to blow-back action, but not something I can't work with.
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Old 09-27-2012, 13:43   #45
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Originally Posted by dm1906 View Post
THAT is on the agenda. There are limitations to blow-back action, but not something I can't work with.
But would the limitations to blowback (in a carbine) be any more serious than the limitations created by, say, a stock G20 barrel?

Probably not. :-) which means you should be able to wring more velocity out of the setup...
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Old 09-27-2012, 14:03   #46
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But would the limitations to blowback (in a carbine) be any more serious than the limitations created by, say, a stock G20 barrel?

Probably not. :-) which means you should be able to wring more velocity out of the setup...
Actually, a lot. I've been down this road before with other cartridges. I'm looking forward to it, but it'll be a couple months before getting started.
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Old 09-27-2012, 15:14   #47
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Quote:
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Actually, a lot. I've been down this road before with other cartridges. I'm looking forward to it, but it'll be a couple months before getting started.
Well, the Glock / 1911 / BHP designs are not blowback.. .and I get that... BUT ... I'd think that you should be able to exceed 6" barreled loadings' velocities quite easily, and maybe even by a large margin.

Time will tell!
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Old 09-27-2012, 15:36   #48
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Well, the Glock / 1911 / BHP designs are not blowback.. .and I get that... BUT ... I'd think that you should be able to exceed 6" barreled loadings' velocities quite easily, and maybe even by a large margin.

Time will tell!
Without a doubt, by a large margin. The 16" .40 is already faster than 10mm in a 5.2". Both loaded to moderate (factory) levels. So far, the comparisons have been basic and unscientific. We'll start gathering some real data, once he gets about 1000 rounds through. It should be about as broken in as it can be, by then. Any minute, now....
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Old 09-27-2012, 16:50   #49
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What are the options for a dedicated frame.. (lower)

I like the idea of switching but may just want a dedicated carbine AND my G20...

Rather not buy a complete gun and have a barrel and slide hanging around... Altho O have been wanting a G21...

CW
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Old 09-27-2012, 20:34   #50
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Probably not. :-) which means you should be able to wring more velocity out of the setup...
I can tell you at least that it will push a 180gr cast bullet over 1500 fps, probably 1600+ with the right load. That's just based on what I've been able to do with a blowback .40 in a 16" barrel.
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Old 09-27-2012, 21:02   #51
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What are the options for a dedicated frame.. (lower)

I like the idea of switching but may just want a dedicated carbine AND my G20...

Rather not buy a complete gun and have a barrel and slide hanging around... Altho O have been wanting a G21...

CW
You can buy frames (including internals), and they are a lot less than compete pistols.

However, if you don't have a G21, and want one, buying a complete G21 would be the way to go. As far as "dedicated carbine" goes, they're so easy to switch (no more difficult than a field strip), you could have the best of both worlds.
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Old 09-27-2012, 21:15   #52
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I can tell you at least that it will push a 180gr cast bullet over 1500 fps, probably 1600+ with the right load. That's just based on what I've been able to do with a blowback .40 in a 16" barrel.
I don't have the actual velocities yet (will on Sunday), but everything indicates you are about right on with what I'm seeing (hearing). A gong report at 150 yds is noticeably faster with the .40 carbine, than a factory power 10mm round from the G20 with a 5.2" barrel. Also 180 gr. cast for both.
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Old 09-28-2012, 09:45   #53
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MichiGun, dm and modglock,

I didn't even realize we were talking about a .40SW MechTech... lol... but the same still applies I guess.
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Old 09-28-2012, 12:06   #54
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MichiGun, dm and modglock,

I didn't even realize we were talking about a .40SW MechTech... lol... but the same still applies I guess.
Well, I know they're talking about .40 but I'm talking about MechTech in general and 10mm.

See, with the .40, they're doing 1,600fps. With the lame 10mm dose, we'd be seeing the neighborhood of that speed.

My reluctance to go Mechtech thus far, is the hot 10mm rounds: if it goes 1,500fps (135gr HOT) with a 6" barrel,

1. would it burst the MechTech burst ???????

2. would I need to reload "lame" 10mm just for the MechTech??? Then we're not exactly talking about the same ammo for my G20 and a future MechTech.

3. Look at it another way, I am looking for Underwood to say something about NOT using their ammo in a MechTech.

4. I go cheap, with plated bullets. They have a max speed before they tumble, roughly 1,200fps. You can see the picture... Forget accuracy! So we are really talking about a different ammo and reloading for a 10mm MechTech.

Am I making sense ?

With the .40 ammo, it is a good route!
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Old 09-28-2012, 12:25   #55
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I haven't read anything about it not handling all 10mm loadings. Mine will likely never see a factory load!

The 21 is something I would like and it's also something I would not use allot. Which is biggest reason I don't have one.

I will need to send some emails to mech tech and see what the consensus is about the barrels. I hope they are atleast as supported as a stick GLOCK is. Hoping it has better support like my KKM or LW barrels do.

Of coarse you don't "need" these top performing loads cause your gonna get at least a couple hundred additional FPS simply from a longer 16" barrel

BUT a bit more or wanting all you can get is American as apple pie and leamonade and Sunday dinner....

Also been reading allot about the funny/funky noise upon firing. I'm assuming most of you have shot a AR rifle... The spring in the butt doesn't sound funny to you??? Along these lines it's my guess the butt you choose will have everything to do with this noise.
I'm going to run a solid but with a foam top. Do not know the actual name.

Another question I've been wanting to know. I see these in AR fore des and like the look funtionality. It looks like a "v" with the open top mounted to the tube allowing you to hook this on something. Or and at the same time pull the rifle into your shoulder. What is this and where can I get it? I'll try to find a pic if no one can figure out what I am describing.

CW
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Old 09-28-2012, 12:37   #56
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Also been reading allot about the funny/funky noise upon firing. I'm assuming most of you have shot a AR rifle... The spring in the butt doesn't sound funny to you??? Along these lines it's my guess the butt you choose will have everything to do with this noise.
I'm going to run a solid but with a foam top. Do not know the actual name.



CW
CW,

I thought the guy from MTech recommend dropping bathtub silicon on the recoil spring to keep it from zinging.
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Old 09-28-2012, 14:17   #57
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Thanks man I had not herd that..

OK I did some searhing and the forend piece I like is this:

The 10 Ring

The butts I am thinking of is this:

The 10 Ring

BUT I just saw and like this one too. This one will allow it to colapse too...

The 10 Ring

CW
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Old 09-28-2012, 15:36   #58
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Thanks man I had not herd that..

CW
Yep. Basically, the spring acts like a tuning fork. So you damp it out by putting a chunk of bathtub silicone on it.

Here's another example of a huge tuning fork that didn't turn out well.

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Old 09-28-2012, 16:27   #59
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Lol Mod I know exactly what you mean regarding your list a few posts back.

And LOL about the bridge video. I remember watching that in physics in high school ... Vibration and oscillation lesson. :-)

CW - yes! Ask MT about the 10mm / blowback issue....
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Old 09-28-2012, 18:35   #60
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MichiGun, dm and modglock,

I didn't even realize we were talking about a .40SW MechTech... lol... but the same still applies I guess.
I just brought up the .40 as an example, wasn't trying to change the subject. Just pointing out what the 10mm Mechtech should do, based on my experience with .40.
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