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Old 06-17-2019, 02:37 PM
RCP Phx

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Cutting down cartridges for BX-25 magazine use???



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How anyone come up with a good way to do this?
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Old 06-17-2019, 02:39 PM
Jammer22
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????

I've never had to do anything to make a BX-25 work. Except load it up and shoot it. You can't hold them or put pressure on them when they are in the rifle, they will misfeed but nope, they work very well as they are with 'stock' ammo.
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Old 06-17-2019, 02:40 PM
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What are you having them do that you want to fix?

Sent from my SM-G930P using Tapatalk

Last edited by rswink; 06-17-2019 at 02:41 PM. Reason: Stupid phone
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Old 06-17-2019, 03:41 PM
Bruno70254
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BX Mag Fix

I had just minor ftf problems with a few of my BX-25 mags so I tried the trim the 22lr case down-problems eliminated. I just used my belt sander to trim casings down.
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Old 06-17-2019, 04:28 PM
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Quote:
Originally Posted by Bruno70254 View Post
I had just minor ftf problems with a few of my BX-25 mags so I tried the trim the 22lr case down-problems eliminated. I just used my belt sander to trim casings down.
Bruno I appreciate your help, i will give that some thought.

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Originally Posted by LtCrunch View Post
Bruno as an EMT and Fireman I hope you will take this as constructive criticism and concern for your safety. Modifying the case dimensions of live ammunition with a belt sander is a recipe for disaster. Throw the faulty mags away and get some that work....please.

Frank
I don't think you understand what's being talked about here, no live ammo is involved!
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Old 06-17-2019, 04:33 PM
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RCP is on this project.. https://www.rimfirecentral.com/forum...d.php?t=463407

And IMO it works... but that is just one trick.. there are other problems/issues that may occur.. some stocks mag wells are tight and/or slightly off center.. that may need to be addressed as well.

Also- DO NOT hold the Banana Mags when firing the rifle! And do not allow them to contact anything.. they need to hang/be free from pressure! Have you ever watched what happens when the bolt runs across the top of the Mag? The Mag moves.. and it needs to articulate/move or it in some cases will bind and mis-feed.. if yours runs well will holding it like a AR pistol grip it is indeed a 1 in about 100.

I use my Dremel with a Cutting disk.. Belt Sander or Grinding wheel works too .. after ya cut/trim one down ya need to Chamfer the inside and outside of the casing to remove burrs.. a round file or some sand paper does that trick.... get it smooth!

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Last edited by Chaser; 06-17-2019 at 05:02 PM.
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Old 06-17-2019, 04:33 PM
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What are you trimming? I am also reading that cartridge dimensions are being altered. Please explain. Chaser and I posted at the same time. Now I understand after seeing the link he posted. Without the full story it sounded like something I would watch someone else do!

Last edited by stringnut; 06-17-2019 at 04:37 PM. Reason: Additional text
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Old 06-17-2019, 04:36 PM
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Quote:
Originally Posted by stringnut View Post
What are you trimming? I am also reading that cartridge dimensions are being altered. Please explain.
follow the link
https://www.rimfirecentral.com/forum...d.php?t=463407
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Old 06-17-2019, 04:51 PM
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Quote:
Originally Posted by Chaser View Post
RCP is on this project.. https://www.rimfirecentral.com/forum...d.php?t=463407

And IMO it works... but that is just one trick.. there are other problems/issues that may occur.. some stocks mag wells are tight and/or slightly off center.. that may need to be addressed as well.

Also- DO NOT hold the Banana Mags when firing the rifle! And do not allow them to contact anything.. they need to hang/be free from pressure!

I use my Dremel with a Cutting disk.. Belt Sander or Grinding wheels works too .. after ya cut/trim one down ya need to Chamfer the inside and outside of the casing to remove burrs.. a round file or some sand paper does that trick.... get it smooth!
Well the OP was as clear as mud... And I think even I got to "don't hold or put pressure on them"
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Old 06-17-2019, 05:00 PM
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Well, I gotta say that 'cutting down cartridges' certainly got MY attention .
I use an ID dia. spud inside a case and clamp it in a 3-jaw drill chuck, spin and Dremel it off.

Last edited by gcrank1; 06-17-2019 at 05:04 PM.
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Old 06-17-2019, 09:45 PM
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The real question here is "how" to safely and accurately cut the cases. Right now I think I'm going to build a jig as I've got to do this about 50 times.
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Old 06-17-2019, 10:11 PM
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Just buy and burn thru a box of shorts.. done.
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Old 06-17-2019, 11:02 PM
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Originally Posted by Chaser View Post
Just buy and burn thru a box of shorts.. done.
This!

(A 22lr revolver makes this very easy to do.)
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Old 06-18-2019, 12:16 AM
RCP Phx

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Easy for you guys to say, I don't own a revolver and I've only got the use of one arm. I definitely am not going to try to hand load and fire 50+ rounds. The jig will be done tomorrow and should make the best solution.
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Old 06-18-2019, 05:56 AM
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[QUOTE=I don't think you understand what's being talked about here, no live ammo is involved![/QUOTE]

My apologies, when I read "cartridges" I took it to mean live ammo. I understand now that you're trying to cut down spent cases. If a handful or two of .22 short cases would help, PM me an address and I'll mail you some.

Cheers,

Frank
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