Author Topic: New Design CGW Barrel Bushing  (Read 108324 times)

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Offline Joe L

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Re: New Design CGW Barrel Bushing
« Reply #180 on: March 16, 2016, 11:20:20 PM »
I forgot to mention in the post above--this 9m 75B slide was worthless at 50 yards before installing the bushing, like 4-6" from a rest on a good day worthless.  For the 50 yard groups to shrink to 2-3" on a bad shooter day is a pretty darn good improvement if you ask me.  I'm very happy with the bushing swap.  Very happy.  (Full disclosure--the red dot helped some, too.)

Joe
CZ-75B 9mm and Kadet, 97B"E", two P-09's, P-07, P-10C, P-10F, P-10S, MTR

Offline romukom

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Re: New Design CGW Barrel Bushing
« Reply #181 on: March 16, 2016, 11:48:23 PM »
Very nice "rushed" shooting. :)  Indeed the bushing is doing its job.  To me those are very good. Thanks for the report.

Offline coolbox

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Re: New Design CGW Barrel Bushing
« Reply #182 on: March 17, 2016, 12:05:50 AM »
2.5-3" groups at 50y..isn't that a standard for custom 1911s? From a ransom rest too..

Thanks for sharing Sir. These are excellent groups already. Looking forward to some more..
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Offline tdogg

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Re: New Design CGW Barrel Bushing
« Reply #183 on: March 17, 2016, 01:08:21 AM »
There are definitely some variations in the pistols the way they come from the factory.  My factory bushing was snug but no snags or poor machining on the slide.  The factory bushing itself was not pretty, a little off center and oval.  When the point of impact moved 4" up and 4" left at 25 yards with the new bushing installed, I knew the old bushing was off.

My SP01 Tactical has a POI shift up about 2-2.5 inches with the CGW bushing at 15yds.  I'm going to confirm it's shift again before changing out the front sight (I don't have adjustable sight).

My last outing, I wasn't shooting that great.  I'm hoping to shoot better my next outing and will post up some results.

Cheers,
Toby
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Offline IDescribe

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Re: New Design CGW Barrel Bushing
« Reply #184 on: March 17, 2016, 06:58:58 AM »
2.5-3" groups at 50y..isn't that a standard for custom 1911s? From a ransom rest too..

For custom bullseye 1911s, 2 inches or less from a mechanical (Ransom) rest is the "standard" goal for mechanical accuracy.  It's not easy to get there.  And it will likely require match grade ammo purpose built for 50 yards, and possibly tuned to that specific pistol.

Joe very well might be one of those guys who can shoot off of a rest and hang with a Ransom.  I wouldn't assume that the 2.5-3" groups would shrink significantly going from Joe's hand to a Ransom rest.  Which is still great.  2.5-3.0" at 50 yards is fantastic.

Offline Joe L

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Re: New Design CGW Barrel Bushing
« Reply #185 on: March 17, 2016, 07:06:52 AM »
2.5-3" groups at 50y..isn't that a standard for custom 1911s? From a ransom rest too..

Coolbox--That is the OLD standard, maybe 2" from a Ransom rest at 50 yards with a good custom 1911.  MY standard, however, is the plastic fantastic JB-Weld CGW P-09 that is good for 1" at 25, 2" at 50 yards, 4" at 100 yards, 8" at 200 yards from a two handed wrist rest with me shooting it, on a good shooter day as recently as last Sunday, in the wind. 

Seriously, if this 75B service pistol shoots close to the P-09's when I'm shooting pistols well, I'm happy.  Every indication I got from last night's rushed session is that the gun/bushing/sight combination is really good now, and it was unacceptable (and rarely shot) with the factory bushing and open sights compared to my "good" pistols, which are the two CGW P-09's and one CGW CZ-97B"E".

The real test will be a full bullseye training session single handed, standing, at 25 and 50 yards compared to the current excellent 97B"E" match gun.  All I verified last night was zero, mechanical function of the sight and slide, and my lack of ability to settle down and shoot well when rushed. 

This is fun.  This is not easy.

Joe   
CZ-75B 9mm and Kadet, 97B"E", two P-09's, P-07, P-10C, P-10F, P-10S, MTR

Offline SlvrDragon50

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Re: New Design CGW Barrel Bushing
« Reply #186 on: March 17, 2016, 10:21:41 AM »
I'm so jealous when I see you guys put up pictures of your groupings at like 25/50 yards...

I struggle with 5 yards!

Offline doc171

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Re: New Design CGW Barrel Bushing
« Reply #187 on: March 17, 2016, 01:58:23 PM »
Installed the 10X bushing in my PCR PRO! I backed out the fiber optic tiny set screw as far as it would go and punched out the pin and much to my surprise {RIGHT} the factory bushing would not move using a punch to push it out. So, I made a hammer puller out of some long quarter inch diameter machine screws and a heavy socket. About 2 minutes later it was out. The factory bushing was UGLY. The OD of the bushing as well as the ID of the PCR was coated with black gunk and RUST. Used some 2000 grit paper to get the rust out of the PCR and cleaned with denatured alcohol and oiled the inside of the PCR where the bushing goes. Got the new CGW bushing out of the freezer where it had been for 4 hours and oiled it also and it went in without any problem and with only a love tap for seating it firmly. And as far as lining up the holes in the pistol and the groove in the bushing, NO PROBLEM. I installed the new sight pin {I think anyone doing the 10X bushing should get a new pin} and reassembled the slide and to my joy the barrel went back in without a hint of binding. Planning on going to local LEO range this weekend with a LEO my son and I know to do some shooting and video and photos. THANKS TO DAVID AND CGW FOR THE 10X BUSHING! OH, before I forget the OD of both factory and the 10X measures .641 with my cheap calipers.

Offline Joe L

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Re: New Design CGW Barrel Bushing
« Reply #188 on: March 19, 2016, 12:40:16 PM »
I am not surprised. This is the gun that in the past no matter what load combination I tried would only do 4" groups at 25 yards. I popped in the bushing last night and tested it this morning. The orange square is a 2 X 2" pastie. This group was shot with the new ACME 145 grain RN bullets and 3.5 grains of ETR-7. I think with a little more load development and some sight adjustments I might have an acceptable back up gun. I am smiling!!! :)


Yep, very similar to mine.  Had a factory slide/barrel/bushing that wasn't even good enough for a backup gun, now I have one good enough for a bullseye match, I think.  I'll know for sure by Sunday noon. 

This is fun.

Joe
CZ-75B 9mm and Kadet, 97B"E", two P-09's, P-07, P-10C, P-10F, P-10S, MTR

Offline tdogg

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Re: New Design CGW Barrel Bushing
« Reply #189 on: March 20, 2016, 08:49:50 PM »
So I finally got out to shoot the SP01 Tactical with the new CGW bushing. I have compiled the most recent data from 60 shots using the OEM bushing and 60 shots using the CGW bushing.  These were all shot at 10yds for reference.  I used two different reload bullets for the comparison: Xtreme 147 RN on top of Power Pistol and BlackNBlue 125gr coated on top of CSB-5.  Here is the summary:


Here is a target using the OEM Bushing:


Here is a target using the CGW Bushing:


In general the results are positive.  I don't shoot this SP01 Tactical very well.  I shoot my 97BD much more consistently and accurately.  I think I need to do some new load development with the new barrel bushing to see if I can get to a better accuracy node with the BlackNBlue 125gr bullets.  I am happy with the Xtreme 147gr bullet load I am using.

Cheers,
Toby
« Last Edit: November 21, 2017, 11:28:48 AM by tdogg »
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Offline copemech

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Re: New Design CGW Barrel Bushing
« Reply #190 on: March 21, 2016, 12:43:02 AM »
I forgot to mention in the post above--this 9m 75B slide was worthless at 50 yards before installing the bushing, like 4-6" from a rest on a good day worthless.  For the 50 yard groups to shrink to 2-3" on a bad shooter day is a pretty darn good improvement if you ask me.  I'm very happy with the bushing swap.  Very happy.  (Full disclosure--the red dot helped some, too.)

Joe

My 75 stainless is the same. I love the gun, as it has great feel and operates like it is made of glass,. but accuracy not great.

I believe David told me that there would be some stainless bushings to go in the glitter guns once the initial run of things settle down. Possibly he could confirm that?


Offline CZNate

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Re: New Design CGW Barrel Bushing
« Reply #191 on: March 21, 2016, 09:36:24 PM »
Just took mine out before I went to work... 7/16 socket with a large punch at an angle with 5 hits of a hammer while holding it in my hand haha.  Wasn't bad at all.  Obviously you have to take the roll pin out before.  I'll be putting the new bushing in when I get home from work.  How exciting.  $60 dollar accu shadow!  Also wanted to thank David for personally calling me back on a Saturday to answer a question and BS with me about CZ's after.  Best customer service.  Thanks for all the before and after range reports guys!!! 

Offline SlvrDragon50

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Re: New Design CGW Barrel Bushing
« Reply #192 on: March 25, 2016, 08:12:03 PM »
Installed my bushing today. It was incredibly easy including the barrel. Dunno if my tolerances are a little more lenient or what but my barrel just dropped right in no problem.

Offline Scarlett Pistol

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Re: New Design CGW Barrel Bushing
« Reply #193 on: March 26, 2016, 12:05:11 AM »
Nice work getting that installed on your first CZ SlvrDragon!
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Offline copemech

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Re: New Design CGW Barrel Bushing
« Reply #194 on: March 26, 2016, 12:25:59 AM »
What witchcraft is this they use to draw out and calculate all the holes?