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Mexico 6.5 C/M

I just measured my two favorite pocket uniformers, and they come in at .2045".
I Measured a CCI 200 primer, and it is .2105". (new)
So your equipment isn't so out of whack, and neither is the brass. Have you chamfered the pocket (maybe heavily) to provide a start for what is a pretty serious interference fit? jd
I have three for "large" primers, both rifle and pistol. Two measure .207, one is .205. The primer pocket to start on this stuff is .203. It wont work, I have tried many different avenues. You wont stuff a cutter or a primer in a undersized hole. Uniformers are used to only cut the primer pocket "seat".
 
I just measured my two favorite pocket uniformers, and they come in at .2045".
I Measured a CCI 200 primer, and it is .2105". (new)
So your equipment isn't so out of whack, and neither is the brass. Have you chamfered the pocket (maybe heavily) to provide a start for what is a pretty serious interference fit? jd
A .2105 primer in a .203 primer pocket makes me think of the primer detonating thread.
 
Burstfire to the rescue. His tool came in today and they are of the utmost quality and the price is almost too good to be true. The kit comes with everything needed to prep brass. I was able to turn these crimped cases into useable brass in an hour. 200 plus pieces.IMG_20250104_163556297.jpgIMG_20250104_163807854.jpg
 
Burstfire to the rescue. His tool came in today and they are of the utmost quality and the price is almost too good to be true. The kit comes with everything needed to prep brass. I was able to turn these crimped cases into useable brass in an hour. 200 plus pieces.View attachment 1619685View attachment 1619687
At the end of the day, what you are going to have is 200 pieces of extremely sub par brass. If you just want to reload it to plink, then go for it. But if you think that you are going to load that brass and shoot competitively small groups, or win, you are sadly mistaken. I’m always amazed what people will do to try and save a few dollars. I look forward to your next post letting us know how it shot in your gun and how it stacked up against some properly loaded high quality reloading brass. I’m also betting dimes to dollars that after the 3rd or 4th firing the majority of the brass will be junk anyway because the primer pockets will be so loose that primers will just be falling out in your ammo boxes.
 
At the end of the day, what you are going to have is 200 pieces of extremely sub par brass. If you just want to reload it to plink, then go for it. But if you think that you are going to load that brass and shoot competitively small groups, or win, you are sadly mistaken. I’m always amazed what people will do to try and save a few dollars. I look forward to your next post letting us know how it shot in your gun and how it stacked up against some properly loaded high quality reloading brass. I’m also betting dimes to dollars that after the 3rd or 4th firing the majority of the brass will be junk anyway because the primer pockets will be so loose that primers will just be falling out in your ammo boxes.
Sir, you need to read and comprehend this thread from the start.
 
If you have the patience and time for sub par brass then you’re better than I am. I value my time as much as a dollar, I’ve learned through the years that something like quality brass most times ends up being a better value. On the front side cheap brass is attractive, after dealing with it and playing around with all kinds of brass over the years I’ve learned that something like Lapua actually ends up being cheaper in the long run. You get many more firings, that makes for easy math, you spend much less time prepping it, it’s more accurate, there’s less if no frustration while loading which makes my reloading time much more enjoyable and productive.

The beauty of these things is we can play around and learn what’s best for us. I admire your ambition.
 
Tight primer pockets are a good thing, but you do need to remove those crimps, as you are doing. I've used most of the non-cutting crimp removers - and I can say that the cutting pocket uniformers do a much better job. I misplaced one of my more expensive cutters and needed one in a hurry a while back. I took a gamble on a set of large and small rifle crimp cutting uniformers sold on Amazone for about $20.00. They worked better than everything I have tried. They will definitely get those cases dialed in for some shooting.
 
At the end of the day, what you are going to have is 200 pieces of extremely sub par brass. If you just want to reload it to plink, then go for it. But if you think that you are going to load that brass and shoot competitively small groups, or win, you are sadly mistaken. I’m always amazed what people will do to try and save a few dollars. I look forward to your next post letting us know how it shot in your gun and how it stacked up against some properly loaded high quality reloading brass. I’m also betting dimes to dollars that after the 3rd or 4th firing the majority of the brass will be junk anyway because the primer pockets will be so loose that primers will just be falling out in your ammo boxes.
Primer pockets all measure .208" go gauge pin and not .210" no go pin.
 
I know you have the tool now, but I have used an inside neck chamfer tool on heavy primer crimps before.
 

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