Bore guide dont fit

[Lkwebb]

I bought a bore guide from I believe it was pma. I bought for Bat b and it does fit. I gets stuck way before the end ever gets to the chamber

 

[Mr.Spradlin]

If its a PMA bore guide it should say PMA on it.
I know this is gonna sound funny but measure the main body at the front, where it gets stuck and the end. Could be an error in the machining of it when it was made OR there is a flaw in the material itself.
I received a 4’ stick of 1” from a vender that was 1 1/8” at one end and 1” at the other.

 

[Lkwebb]

If its a PMA bore guide it should say PMA on it.
I know this is gonna sound funny but measure the main body at the front, where it gets stuck and the end. Could be an error in the machining of it when it was made OR there is a flaw in the material itself.
I received a 4’ stick of 1” from a vender that was 1 1/8” at one end and 1” at the other.

It's a 720

 

[mtncwru]

I'd drop PMA a line and let them know. Possible they sent you the wrong one, or that there was a machining issue like Mr.Spradlin mentioned.

Either way, I expect that PMA will get it sorted quickly; and thanks for the reminder, been meaning to pick up another guide from them

 

[LCazador]

Now measure bolt at front end. Probably is .700", if it is send it back to PMA.

 

[Lkwebb]

Now measure bolt at front end. Probably is .700", if it is send it back to PMA.

 

[Lkwebb]

I just sent a email to pma and I got it send back me..

 

[Jeff N]

I have the PMA 720 and it fits perfectly in my BAT Bs. My PMA diameter measures .718". The BAT B receiver bore is specified at .720". What is the diameter of the bore guide that you received?

 

[Lkwebb]

I have the PMA 720 and it fits perfectly in my BAT Bs. My PMA diameter measures .718". The BAT B receiver bore is specified at .720". What is the diameter of the bore guide that you received?

720.. its in the picture above with it stamped in it

 

[Edd]

Did you measure it?

 

[Lkwebb]

Did you measure it?

Yes its a 720 at the start of the guide after the step up from the nipple.
Then it gets to 721...right at the markings of 720 6ppc it's 723

 

[Old Navy]

Try it without the "o" ring

 

[Lkwebb]

Try it without the "o" ring

The problem is in the thicker part of bore guide

 

[Scott haywood]

There is a part of the bore guide that goes into the chamber body, not the neck with the o-ring. As your chamber body is tapered, if you press the guide in hard, you may wedge this part of the guide tight into the chamber. I have had this issue and quit forcing the guide in to tightly.

 

[Lkwebb]

There is a part of the bore guide that goes into the chamber body, not the neck with the o-ring. As your chamber body is tapered, if you press the guide in hard, you may wedge this part of the guide tight into the chamber. I have had this issue and quit forcing the guide in to tightly.

Thats what was happening . That's why I stopped pushing it in. I put some oil in it ans got the guide out of the action

 

[mtncwru]

I just sent a email to pma and I got it send back me..

That's weird. I emailed a couple questions to support@pmatool.com this morning and Pat got back to me in an hour. Maybe give the Contact form on their website (https://www.pmatool.com/contact-us/) a shot or give them a call?

 

[Lkwebb]

That's weird. I emailed a couple questions to support@pmatool.com this morning and Pat got back to me in an hour. Maybe give the Contact form on their website (https://www.pmatool.com/contact-us/) a shot or give them a call?

I got a call into them and Pat called me. Apparently they had a few bore guides that were out of spec that got shipped.
We are doing a exchange