M100 and M150 guns dumb question

[mikemuirhead]

I need a little help. I have a 211 and both an M100 and M150 gun. I want to make the M100 gun a dedicated .023/.024. The problem is that I recently moved and in the move things got mixed up and now I can't tell which gun is which. The dimensions look identical without taking any measurements. There are no markings that I can find on either one. How can I figure it out? They both currently have the. 035 liner.

[Aeronca41]

I only have an M100 (my other guns are Bernard and different very old Millers), so no way to compare them with another set of eyes; perhaps someone else has a way to tell. aametalmaster worked for Miller for a while and may have a hint or two, and H80N is the master of web searches. The Link below shows the spec sheet. It appears the sure way would be to accurately weigh them.

https://www.millerwelds.com/~/media/...c/f/ay15-0.pdf

[Broccoli1]

I've never had any problem running .024 wire through my gun.

[H80N]

I only have an M100 (my other guns are Bernard and different very old Millers), so no way to compare them with another set of eyes; perhaps someone else has a way to tell. aametalmaster worked for Miller for a while and may have a hint or two, and H80N is the master of web searches. The Link below shows the spec sheet. It appears the sure way would be to accurately weigh them.

https://www.millerwelds.com/~/media/...c/f/ay15-0.pdf

Maybe there is no difference other than the wire strain relief spring on the M150.....???

and possibly a heavier conductor in the conduit....??....that 1.2 lbs difference..?? or typo..??

they seem to share the same consumables and parts..................

I DO like the weighing idea........................... should tell us something

[Aeronca41]

Maybe there is no difference other than the wire strain relief spring on the M150.....???

and possibly a heavier conductor in the conduit....??....that 1.2 lbs difference..?? or typo..??

they seem to share the same consumables and parts..................

I DO like the weighing idea........................... should tell us something

Agree--I'm guessing just a heavier conductor for carrying 150 amps vs. 100. With all the same consumables, I can't see what other difference there could be, especially with them looking identical.

[aametalmaster]

I too was thinking weigh them. They used to have a code with diamonds on the cable. I would pick one and put a small liner in it...Bob