Reeder Custom Guns - Most likely the .41 cal are rated for higher

Asa
Most likely the .41 cal are rated for higher
Thursday, November 28, 2019, 13:16

velocity of the 41 mag, the 10mm would probably perform just fine at 10mm velocities. Only caution to squeezing down is if there is any spring back to the jacket material and it separates from the lead, not likely but some brands might. I swage my own 10mm from soft lead with a 9mm casing for a jacket. This has been proven by the man who made my dies to expand at 40 s&w velocities and has held up in a 300 win mag opened up to .400 caliber. Real world testing will be your only true answer.

Interesting discussion...sizing 41cal to 40 - Drdougrx, 2019-11-28, 10:15
- Most likely the .41 cal are rated for higher - Asa, 2019-11-28, 13:16
- Yes, it’s an old trick. .312/.309, .358/.356, .458/.452, . - WB, 2019-11-28, 11:32
- Indeed you can... - Huey, 2019-11-28, 10:42
  - I would of thought ... - Josh, 2019-11-28, 13:06
    - Doesnt work harden them that much. (nm) - Asa, 2019-11-28, 13:10
      - All it does is squeeze them down a few thousandths... - Huey, 2019-11-28, 13:13
        On rare occasion you can separate the core - WB, 2019-11-28, 14:32