Throat Erosion and Muzzle Wear video is up **in HD!** - M14 Forum

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Throat Erosion and Muzzle Wear video is up **in HD!**

This is a discussion on Throat Erosion and Muzzle Wear video is up **in HD!** within the The M14 forums, part of the M14 M1A Forum category; I borrowed an HD camera and am in the process of doing a few videos. Hopefully I'll have another one or 2 up later today. ...


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Old February 9th, 2014, 01:05 PM   #1
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Throat Erosion and Muzzle Wear video is up **in HD!**

I borrowed an HD camera and am in the process of doing a few videos.

Hopefully I'll have another one or 2 up later today.


Tony.

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Old February 9th, 2014, 01:29 PM   #2
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Thanks Tony, a bore scope is a must if you are dealing with USGI take off barrels.

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Old February 9th, 2014, 02:41 PM   #3
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Cool!! More TB videos...they are the best!

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Old February 9th, 2014, 05:01 PM   #4
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Can you make a video to help me with my taxes???? :)

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Old February 9th, 2014, 05:54 PM   #5
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Can you make a video to help me with my taxes???? :)
No, but I can make a video that will show you where to shov-.... errr, I mean, invest your tax return if you get one....

Tony.

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Old February 9th, 2014, 07:58 PM   #6
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Just got done watching all of the new vids. Good call on borrowing that camera, it really makes a world of difference. These videos look downright professional now. I especially like the two videos on trigger group dis assembly and reassembly. The new camera made it very easy to see every part and where it is supposed to go.

Keep up the great work!

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Old February 9th, 2014, 09:47 PM   #7
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Fine product, Tony, so are the rest of your projects.

Questions.
What if the chambered is throated long, will it read negative?
To what dimension in the reamer spec does the Zero represent?
What is the diameter of the spud that you insert and bottoms out?

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Old February 10th, 2014, 06:16 AM   #8
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Originally Posted by Bamban View Post
Fine product, Tony, so are the rest of your projects.

Questions.
What if the chambered is throated long, will it read negative?
To what dimension in the reamer spec does the Zero represent?
What is the diameter of the spud that you insert and bottoms out?
Thanks Nez.

1- If I read your question right, then if the throat is chambered long for larger bullets or for more freebore, then the gauge will have to travel farther which will give you a positive number, falsely meaning that the throat has worn down a bit. If it's short chambered, or maybe you have the barrel chambered for lighter bullets to give them less jump, then the number would read a -1 or something like that.

2 & 3-The blueprints I have from George at Battle Arms Development indicate that the very tip of my gauge is 0.290". The first line which represents -1 is 0.2990". The second line which intersects the 0 measures 0.3000". The next line is 1 which measures 0.3010", the next line is 2 which measures 0.3020" and the last line is 3 which measures 0.3030".

My gauge eventually achieves a maximum thickness of 0.3100" and has a taper rate starting from from the -1 mark of 0.0100"/1.000".

I'm not sure what you mean on question 3, but I think I answered it in the paragraph above. Was that the answer you were looking for?

Tony.


Last edited by tonyben; February 10th, 2014 at 06:38 AM.
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Old February 10th, 2014, 06:33 AM   #9
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Originally Posted by tonyben View Post
Thanks Nez.

1- If I read your question right, then if the throat is chambered long for larger bullets or for more freebore, then the gauge will have to travel farther which will give you a positive number, falsely meaning that the throat has worn down a bit. If it's short chambered, or maybe you have the barrel chambered for lighter bullets to give them less jump, then the number would read a -1 or something like that.

2 & 3-The blueprints I have from George at Battle Arms Development indicate that the very tip of my gauge is 0.290". The first line which represents -1 is 0.2990". The second line which intersects the 0 measures 0.3000". The next line is 1 which measures 0.3010", the next line is 2 which measures 0.3020" and the last line is 3 which measures 0.3030".

My gauge eventually achieves a maximum thickness of 0.3100" and has a taper rate starting from the tip of 0.0100"/1.000".

I'm not sure what you mean on question 3, but I think I answered it in the paragraph above. Was that the answer you were looking for?

Tony.
Tony,

Thanks.

I do not own throat erosion gauge.

You answered my questions with dimensions you enumerated. I suppose one of the ways to use the gauge is to take a reference measurement on a new barrel and periodically take measurement at set round count interval to see how much erosion there is. I would guess the erosion will track llinearly with round count.

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Old February 10th, 2014, 06:35 AM   #10
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Originally Posted by Bamban View Post
Tony,

Thanks.

I do not own throat erosion gauge.

You answered my questions with dimensions you enumerated. I suppose one of the ways to use the gauge is to take a reference reference on a new barrel and periodically take measurement at set round count interval to see how much erosion there is. I would guess the erosion will track llinearly with round count.
Thanks. That's exactly what I stated in the first part of the video. You should take an initial reading as a BASELINE and use the same gauge as an accurate means to track wear. I also forgot to mention that some barrel makers may recess the crown or stop the rifling shorter of the crown than others. So, depending on the recess, you could have a 1 or 1.5 wear reading on an unfired barrel.

Tony.

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Old February 10th, 2014, 07:04 AM   #11
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TE is linear while MW is not. Also TE will indicate where the end of your barrel lies...around 6. Anything more and the groups will expand greatly.

There is a couple of GCA articles that cover this where they shot 14,000+ rounds out of an M1 and grouped it on paper every 1k.

TE>6 = shotgun pattern on the target.

Again, this is at 100 yards, so effect may be even greater at distance.

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Old March 2nd, 2014, 06:34 AM   #12
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Just went to the Battle Arms website & that BAD-T1 multitool for the M1A is awesome. I just wish it didn't cost $250.00

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Old March 4th, 2014, 03:36 AM   #13
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Wonderful, Tony! Congrats on all vids. Two suggestions, though. 1. Please keep the 'uh' count down for us old nearly deaf f@rts. It takes lots of energy for me to listen, and superfluous noise tires me quickly. 2. Background distractions, I keep trying to figure out what the items behind you are. Please don't get mad, as another fellow on this forum did. Best wishes to you and yours. PS I tried to send this by private email, but the computer did not send it.

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Old March 9th, 2014, 07:44 PM   #14
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Originally Posted by davecampperry View Post
Wonderful, Tony! Congrats on all vids. Two suggestions, though. 1. Please keep the 'uh' count down for us old nearly deaf f@rts. It takes lots of energy for me to listen, and superfluous noise tires me quickly. 2. Background distractions, I keep trying to figure out what the items behind you are. Please don't get mad, as another fellow on this forum did. Best wishes to you and yours. PS I tried to send this by private email, but the computer did not send it.
I'll work on the "uh's". I go into these videos pretty unscripted and just talk as I go along, so basically, I'm speaking with my real-time thought process. I was also feeling pretty crappy when I did that video but it was the only window I had to shoot a video, so I did the best with what I had.

Unfortunately, my dwelling is quite small for the size of my family. Anyone who's been over to my garage can attest to its clutter and small size. I really hope to be in a bigger house in 2015 where maybe I can have my own gun room or a more organized corner of the garage.

I can't be mad at you, Dave! I'm just happy that you're here and posting again. You were missed!

Tony.

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Old March 26th, 2014, 02:12 AM   #15
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Thanks Tony for sharing this informative video. I want to ask muzzle will gauge less than 3 and the throat erosion will gauge less than 5 by military standards 3 and 5 is considered as non serviceable.And how much life does the barrel have left.

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