I acquired some brass and lo and behold it was crimped in 4 places around the hole.....sigh....

I used the Lyman pocket reamer on some and it seemed to work. However, I am getting feedback not to ream because my primers might fall out.

Have you had success at reaming?

THANKS

I don't know about Lyman reamer. I just prepped some LC 7.62x51 brass. I swaged the primer pockets with the RCBS (old style swager) then reamed them with a RCBS reamer (again old style) then broke the edge with a 45 degree cutter.

These primer pockets are still very tight but not so tight that a RCBS hand priming tool could not be used.

I have done brass before without reaming and those I had to prime on my press because they were so tight.

I suggest you try a test lot of say 10 or so and find out for yourself.

Motor1

I've used and worn out two lyman reamers, I've read on here of peope loving theirs, but best I can tell, it's an older one that they've had for years.
I got my first one around 2009, and the second one around 2010.  between both of those, they reammed about 1000 peices...


I seem to find that cases reamed using this tool are still not so easy to seat a primer in, but it's impossible to over ream, like it is if you use the deburring tool or 45 degree cutter recomendations.


I know Ive heard a lot more positive things about the hornady tool. Personally, I've moved onto the dillon super swage. after having also tried the RCBS press-mounted tool, which was a pain to get the cases off the ram once they were reamed (though lookinng at the RCBS catalog, maybe my dad lost the part that goes on to help with that, or maybe they offer that part in newer tools, the one I used was borrowed)

No issue with the Hornady reamer.

^ What he said. I use my Hornady reamers, and have never had a problem. Primers still seat quite tightly on true once-fired brass, and it's hard to screw up. Can't beat the price, either.