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Maximum velocity for RMR 9mm projectiles?

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  • August 12, 2025 at 12:44 am #536923
    cavemountain
    Participant

    I’d like to know if anyone has reloaded RMR 9mm projectiles in 350 Legend and tested them for jacket/core separation at 2000-2400 FPS. I normally reload Gold Dots and XTP’s but it would be great if the RMR’s held up under high pressure and velocity down range.

    September 14, 2025 at 2:18 pm #538024
    drruhland357
    Participant

    I have the same question, i also have 350 legend and had purchased some hornady . 355 fmj 147 grain rn awhile back and have been hard pressed to find more , most are hollow point and of course mor expensive. These shot fine with 1-1/2 to 2 inch groups at 100 yards in an AR, So i would like to know also if these are up to par. May try calling to get our answers.

    June 29, 2026 at 1:09 pm #549147
    JBS27572
    Participant

    Any updates on this? I have tested the 147 gr match winners in both the round nose and truncated cone and I have found it impossible to find a load that is under 2.5″ groups at 100 yards. I think these are just not a viable option for loading at 2200 to 2500 fps. I didn’t see evidence of jacket separation but I suspect they are not that stable at rifle speeds. Tearing of the holes in the target seems to indicate that. I have tested them in 1:16 twist barrels (most common) and 1:10 twist barrels (very uncommon unless you buy custom). I don’t think I will be ordering more of these. I still have not found a source of cheap plinking bullets for 350 legend after a year of looking.

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