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Old 04-24-2013, 15:30   #26
ctious
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Originally Posted by ModGlock17 View Post
Don't know if you already smoothed out the action. I was thinking if it was done with the break-in period, or in my case polished, that the slide would move faster slamming into battery, thereby forcing the cartridge in.
The action cycled them yet. But having a bullet in a chamber with no room to expand and release the boolit is dangerous. Pressure spikes. It only took a little force with one finger to push it all the way in. But I want it to drop freely in. I think honestly the .401 will be perfect.
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Old 04-24-2013, 19:55   #27
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Danged you ctious and ModGlock17! Feeling a little jealous right now.

Thank you both for posting reports and photos.
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Old 04-25-2013, 12:33   #28
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My sentiments echo Taterhead's ... AWESOME review material here~~~
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Old 04-25-2013, 13:29   #29
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Shot 62 rounds on cast today. I swear the barrel is cleaner now than before I shot. These things love cast. I need to chrono it. The same loads in the pistol hit 1325. 205 gr. I wonder what the ccu is doing.
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Old 04-25-2013, 18:15   #30
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Shot 62 rounds on cast today. I swear the barrel is cleaner now than before I shot. These things love cast. I need to chrono it. The same loads in the pistol hit 1325. 205 gr. I wonder what the ccu is doing.
Way curious. Please do, and report back!
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Old 04-26-2013, 11:55   #31
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Congrats to everyone on their new CCUs. I want one, but don't have a Glock 20 so that makes the decision a bit tougher. Seems like a fun carbine to have though.

Last edited by Bongo Boy; 04-26-2013 at 15:23..
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Old 04-26-2013, 12:01   #32
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I have a weekend get away with the woman. So no testing till maybe Sunday aft or Monday. Darn it.
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Old 04-26-2013, 13:03   #33
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Great thread! Great review! Thank you! I've got one of the very first units and it does have some problems... so many (not major) that i just set it aside until i have the time to really get into it and dial it in. These new ccu's you guys have are much better than the old ones like i have. I like the magnetic idea on that little block, too. I used "AGrip adhesive" to make mine stick... but the magnet idea is better. Also, i don't know what your little blocks look like but mine has a flat feed ramp. Problem is that the flat smashes a flat spot in the nose of the bullet as it is fed and that will effect accuracy. I think i will probably machine mine a bit to dish out the flat a bit. It's easy enough to do. The recoil buffer on mine is super bouncy rubber which causes the bolt to bounce and fly back way faster than it should. So i need to fix that. I beefed up the striker spring, but haven't tested it yet, so it may be fine now. I've put several CorBon 180 gr JSP's rated for 1350 fps out of a G20 through it with no blowouts or smilies... so mine seems to have enough chamber support. Mine also has that cheezy flat bent metal stock which is basically worthless. So i need to convert it to a much better stock, but i want to make it a folder. A Butler Creek folder looks like it will bolt right on... so i may go with one of those. These folder stocks are a bit on the heavy side, so it should balance the gun out better, but i really don't want it heavier than need be, so i may just go with a telescoping stock instead. Another simple fix. Just takes time and effort... and a little bit of money.

As for welding hardened tool steel; When you weld it the heat of the welding will kill the heat treat around the weld... so... not recommended.

As for the difference between a G22 frame and G20 frame... the two frames are NOT the same. The G20 is wider, so i doubt the G22 will fit the G20 frame safely.
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Old 04-27-2013, 13:37   #34
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Here's a picture of the GlockBlock as it sits outside. It came as a dull colored steel like the locking block in the background.
The 10 Ring


I polished it up hoping that the surface is so slicky for bullet heads to slide on.
The 10 Ring


Actually, it functions more like a bouncer, bouncing the bullet towards the chamber.
The 10 Ring
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Old 04-27-2013, 13:45   #35
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Tip on modifying .45 mags to fit 10mm

Close the lips at the top of the mag to .370"-.380", evenly on both sides. This will hold enough of the 10mm case such that you will see 100% of the primer circle, as in the picture.
The 10 Ring

I think 70% or so of the primer shown will still work, but 100% seems more reliable because it get easier for the loader strip under the bolt to pick up and push the case forward to load.

The .45 follower will still work.
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Old 04-27-2013, 13:51   #36
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My brass catcher to give you guys some idea... This thing saves me a lot of time at the range!
The 10 Ring

The net was from Walmart's bag of recycled golf balls, $10 with the golf balls. I need the golf balls for practice, too.
The 10 Ring

The frame was taken from a political yard sign in the last election.
The 10 Ring
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Old 04-27-2013, 15:18   #37
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Quote:
Originally Posted by ModGlock17 View Post
Here's a picture of the GlockBlock as it sits outside. It came as a dull colored steel like the locking block in the background.
The 10 Ring


I polished it up hoping that the surface is so slicky for bullet heads to slide on.
The 10 Ring


Actually, it functions more like a bouncer, bouncing the bullet towards the chamber.
The 10 Ring


Yup, that's the surface i was talking about that should be reshaped so it doesn't deform the bullets. Most all of the bullets i've pulled out of the chamber were deformed by slamming into this surface. Not cool.
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AGrip™ Installation Video
http://www.youtube.com/watch?v=SlnDjdfWkLY


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Old 04-27-2013, 16:33   #38
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Id like to see if Win-296 powder might provide some good velocity with a heavy bullet in the 16" barrel

anybody wanna try this for me?
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Old 04-27-2013, 19:31   #39
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Originally Posted by Tazz10m View Post
Yup, that's the surface i was talking about that should be reshaped so it doesn't deform the bullets. Most all of the bullets i've pulled out of the chamber were deformed by slamming into this surface. Not cool.
Did it deform hard cast or jacketed bullets ? Or both ?

Curious.
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Old 04-27-2013, 19:34   #40
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Originally Posted by gofastman View Post
Id like to see if Win-296 powder might provide some good velocity with a heavy bullet in the 16" barrel

anybody wanna try this for me?
Hard for me to find time right now. Plus I want to keep life simple with fewest powder type in stock. I wanted to chrono all that I shot but simply didn't have enough time.
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Old 04-29-2013, 12:14   #41
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Some speed number posted in another thread started in the 10 ring.
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Old 04-30-2013, 18:47   #42
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I curved my block. I had an extra so figured I would try it. Much better feeding. The bullets don't hop anymore and no deformed cast edges. I suggest u do yours as well. All I did was make it curved just in the middle. I would post a pic but this site does not like me when it comes to pics. I can text it to someone if they would like to post it.
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Old 04-30-2013, 20:53   #43
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Quote:
Originally Posted by ModGlock17 View Post
Did it deform hard cast or jacketed bullets ? Or both ?

Curious.
I didn't try any hard cast as i didn't have any to test. But it slams the whole cartridge into this block so hard that i'm pretty sure it would deform those also at least a little. The block also kicks the cartridge up into the roof of the chamber hard enough to put another dent in bullet as well as a dent in the brass causing a few failures to feed. Contrast this with the fact that both my G20 and G29 feed the rounds almost straight into their respective Glock chambers barely even hitting the ramp.
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Celebrating 20 Years of helping good people get AGrip™!

Find out what all the fuzz is about... seriously... get AGrip!

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AGrip™ Installation Video
http://www.youtube.com/watch?v=SlnDjdfWkLY


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Old 04-30-2013, 20:57   #44
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Originally Posted by ctious View Post
I curved my block. I had an extra so figured I would try it. Much better feeding. The bullets don't hop anymore and no deformed cast edges. I suggest u do yours as well. All I did was make it curved just in the middle. I would post a pic but this site does not like me when it comes to pics. I can text it to someone if they would like to post it.
Awesome! I knew it had to work! Can you send a pic to my email address? brooks@brookstactical.com? I'd love to see it! Also, what tool did you choose to do the job with and how deep did you grind it?
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Celebrating 20 Years of helping good people get AGrip™!

Find out what all the fuzz is about... seriously... get AGrip!

Brooks W. Speier
www.BrooksTactical.com Official AGrip™ Manufacturer Website

AGrip™ Installation Video
http://www.youtube.com/watch?v=SlnDjdfWkLY


Never let anyone who is clueless about defense tell you what you can and can't do to protect yourself and others.

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Old 04-30-2013, 21:15   #45
ModGlock17
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I curved my block. ...
Great idea. Let me see if I can find a Dremmel stone bit that has a diameter of .400 to .500 then aim for the middle of the block.

A concavely curved block, like the ramps found on any Glock barrels, would spread the impact force over larger contact area on the cartridge than at a single point. That would lower the force/square inch, thus less likely to dent the bullets.

Kind of like the splash block at the bottom of the down spout of a rain gutter.

My only concern would be that you'd want to deposit more metal on the block to form the curvature, rather than take the metal away...

Last edited by ModGlock17; 04-30-2013 at 21:20..
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Old 04-30-2013, 22:16   #46
ctious
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I will email a pic. I. These block cutting away is the right idea. If you look at the flat face of the block when u have the bolt back there is a rather larger jump forward to the chamber. I took mine down quite a bit. More or less matched the block to feed into the ramp of the chamber. Loads slide in like butter. No slamming into the block anymore.
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Old 04-30-2013, 22:18   #47
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I started with a dremel but it was too sloppy. Then too a rat tail file and filed it down. Then used some 220 grit to smooth it then some 800. Then a little metal polish.
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Old 04-30-2013, 22:24   #48
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Email sent. With pics.
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Old 05-01-2013, 20:17   #49
ctious
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Ran a mag through it this aft. I don't know if its from curving the block or not. But it has a totally new feel. When it feeds it a super smooth feel. No bumps. No damage to chambered rounds. Ran a dummy round of cast a good doz times letting the bolt slam shut. No deformation.

Mech tech should curve the blocks stock.
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Old 05-03-2013, 11:08   #50
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Quote:
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Ran a mag through it this aft. I don't know if its from curving the block or not. But it has a totally new feel. When it feeds it a super smooth feel. No bumps. No damage to chambered rounds. Ran a dummy round of cast a good doz times letting the bolt slam shut. No deformation.

Mech tech should curve the blocks stock.
I took your excellent suggestion and did this.
The 10 Ring

Notice the Before and After pictures. It cycled very well and worked great!
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