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Cleaning the port holes on an AMT-II

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Callahan's Auto Mag
Callahan's Auto Mag


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    Posted: 21 Mar 2016 at 12:48am
Hi John,
 
Yes, I still have it.  I'll shoot you a PM so we don't keep bumping this thread to the top.
 
Thanks,
 
John
 
 
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International Auto Mag
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mymdAMT Quote  Post ReplyReply Direct Link To This Post Posted: 20 Mar 2016 at 11:30pm
Luv to Shoot: would you still have a barrel for the 6" AMT II? I've been searching for our for a while now: HS says they will be doing them again, some time this year, maybe!
John in Maryland
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mymdAMT Quote  Post ReplyReply Direct Link To This Post Posted: 20 Mar 2016 at 11:10pm
Luv to Shoot: would you still have a barrel for the 6" AMT II? I've been searching for our for a while now: HS says they will be doing them again, some time this year, maybe!
John in Maryland
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Callahan's Auto Mag
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sirsaka Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2015 at 5:38pm
The little "ATTENTION" notice was thown into each box after we (service) had received so many complaints about it not being in the Owner's Manual. I can't speak for Larry but he most likely pinned the prototype barrel for easy change out while he worked with the port sizes. The ports are in the barrel, not the sleeve (or shroud), One set in front of the chamber and two sets in the chamber, channeling the gas. The sleeve simply encases the system. I remember the painstaking efforts Larry went thru in the development stage. But he did it!!! I'm sure the welding of the production pieces is for simplicity and reduced cost of manufacturing. Larry, please reign in here. LOL
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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2015 at 5:04pm

Yep, forgot about this one, "Excel Arms also makes one in 22WMR.  It's called an Accelerator". It was on my list of "to get". They also make a rifle verson called the "Accelerator Rifle", and Mitchell Mauser has a exact rifle copy called the "BLACK Lightning", but I have yet to get around to looking into. I would like to know how they did their handgun barrel.

 I didn't consider HS Automag II because why get a "FAKE" paying more money when you can get the AMT brand for less, though I do agree it is a current production item and should be included. Also heard nothing but trouble with the new HS barrels having issues but not first hand exp. with them.

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Callahan's Auto Mag
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luvz2Shoot Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2015 at 4:45pm
Excel Arms also makes one in 22WMR.  It's called an Accelerator.
 
 
Also, we can't forget the High Standard AMT-II that they are currently selling.  These do not have the ported or fluted barrels.  The chamber is smooth.  I purchased one of their barrels for a different idea/project that I was thinking about.  I haven't heard of anyone owning a High Standard AMT-II or how they shoot.  Don't know if they are ammo specific either.
 
 
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Callahan's Auto Mag
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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Oct 2015 at 4:32pm
The semi-pistols out there for 22mag. that I know of are: 
AMT Automag II with barrel ports
Grendel with fluted chamber
Current production Kel-Tec PMR 30 (don't own, not sure how they have the barrel set up).

I never had bad issues with mine getting dirty as I never shot them before knowing about these ports/gas system and then getting the correct listed ammo. I'm sure others just laugh at the ammo suggested and figure ammo is ammo or AMT was getting a kickback for promoting that ammo brand not knowing of the "gas system", and of course not reading the manual to understand why.

Some AM II had a "notice" paper in with it to use only "ball Powder ammo" and CCI was changing to this style. So if you had older CCI return it for the new "ball powder" style. Most of this good info. was in the manuals but people never read that stuff till it's too late. Now with the "used" gun market, some didn't come with manuals and people are not aware of this "gas system" so they shot bad ammo, causing many issues, then selling the trouble piece to the next uninformed person, who  then gets to  experience bad things and so on. Until it gets to one of us informed persons who gets the chore of "cleaning" it.
Larry, you said your "TEST" AM II had a pinned barrel, why was it produced with a welded one?
You also stated when you tested you had nothing but black, were you using only the "ball powder" for the test? or all types/brands of ammo. If only Win super "X", maybe that's the reason it stayed clean? Just think of how many were shot with "dirty" ammo and they blamed the firearm.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luvz2Shoot Quote  Post ReplyReply Direct Link To This Post Posted: 30 Sep 2015 at 11:22pm

 

Thank you for the insight.  Pinned?  Was that for testing only?

 
So, could the "recent problems" (the last 20years?) be from the various manufacturers of the 22WM ammo?  Winchester initiated it for their rifles and used a more powerful load and ball-type powder for their rifles, then after a few years more manufacturers started making their own recipes and NOT using ball-type powder and lighter loads?
 
When you designed it, you found Winchester (to be the only?) manufacturer of 22WM ammo and that is why it was the recommended ammo for the AMT-II?
 
I'm just trying to figure this out.  Maybe I should just take it out and enjoy anything that I can run through it?  I just hate when it starts failing to eject.  Everything, and every one, has blamed the port holes being plugged, but that may not be the case with today's ammo?   Cry
 
I don't know but would like to try and figure it out.
 
Thanks.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sirsaka Quote  Post ReplyReply Direct Link To This Post Posted: 30 Sep 2015 at 8:35pm
A pinned sleeve Larry? When did you change from the weld? Or did High Standard do the change. I actually saw a High Standard barrel a couple years back and although the sleeve (shroud) was round, not "D" shaped, it had no pin. ???Confused
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Post Options Post Options   Thanks (0) Thanks(0)   Quote LARSCHOP100 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Sep 2015 at 8:29pm
There should be no reason to clean the ports , when I tested a AM II , with many rounds , then took the sleeve off the barrel ( it was only pinned ) there was no residue , just a little black , but clean !!
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