Free U.S. Shipping
(208) 816ā€“3859

RMR 147gn .357 FMJ

Home › Forums › Reloading Database › RMR In-House Bullets › RMR 147gn .357 FMJ

Tagged: ,

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • February 12, 2022 at 7:05 pm #408909
    Rollis Karvellis
    Participant

    This is the .357 version of the poplar .355 9mm bullet.

    I used a CH4D canneluring tool to swag a cannelure grove into them so that the roll crimp will be easer to apply.

    Bullet: Rocky Mountain Reloading 147 grain .357.
    Case: Who knows.
    Primer: MagTech SRM.
    Powder: Alliant 2400 13.5 grains.

    A.V. 1,001 FPS
    Low: 921 FPS
    Hi: 1,044 FPS
    E.S. 123 FPS
    E.D. 46 FPS

    This charge weight is below the starting load that appears in the Lyman 50th Reloading Handbook page 417 for the 145 gr. Silvertip.
    Alliant 2400 13.9-15.5.

    The recoil was almost nonexistent, and no pressure signs.

    October 25, 2023 at 9:06 pm #501688
    spclement
    Participant

    Thanks for the post Rollis. I have not purchased any the smiley bullets yet. Mostly because the Lyman 50th data you referenced was the only source of load data I could find for anything close to a 147 fmj bullet. I appreciate you filling us in on your experience with these Smiley bullets and Alliant 2400, which is one of my favorite powders. I just may have to give them a try.
    I did just purchase the teardrop 124 grain bullets and loaded them over what Lyman considers a mid-range .357 charge of 15.4 grains of 2400 for a 125 grain XTP after putting a cannelure in them with a Buffalo Arms cannelure tool. I loaded them with an OAL of 1.59 but haven’t fired any yet.

    November 13, 2024 at 2:13 pm #522978
    Mike
    Participant

    Iā€™m trying to figure out how they get that much powder in the case. 12.1g is just barely under the top of the case at 1.285ā€

    My Speer #13 gives data for 146g at 12.1-14.1. If I put 12.2g in it spills when the press indexes šŸ™

    November 13, 2024 at 7:50 pm #523008
    Mike
    Participant

    Never mind my previous rambling about the charge not fitting. Had a brain fart with my scale. šŸ˜‚

    February 26, 2025 at 2:23 pm #528506
    Todd H
    Participant

    Just got my first revolver in over a decade, GP100 in .357. Long time RMR fan, love the In House line in .224, 9, 10, 45.

    Couldn’t find a lot of info on using the Lee FCD with these, so I did some testing. New Starline brass, S&A small pistol primers, IMR4227. Crimps w FCD at Full, 3/4, and 1/2 turn. Used Hodgdon’s data for the 146JHP, 15.2, 15.5, and 16 (book max) grains.

    The 3/4 and full crimps showed no creep at max charges.
    The 1/2 crimp showed creep with 2 rounds after 5 max charge recoils, 0.001 and 0.003″. Inconsequential to this new revolver reloader. That was 2 out of about 10 rounds in that position.

    That said, the grouping on the full crimp was about 2″ at 25yds. Great stuff!

    Many thanks to the Jake and the RMR crew!

    February 26, 2025 at 4:41 pm #528512
    Todd H
    Participant

    Forgot to put in COAL: 1.58″

  • Author
    Posts
Viewing 6 posts - 1 through 6 (of 6 total)
  • You must be logged in to reply to this topic.

Get Exclusive Savings Now

Get Access to exclusive sales and coupons. Enter your email address and start saving now



About RMR

Our mission is simple: to provide the best products and service to our customers at the lowest prices possible. We take great pride in our company, our commitment to customer service and in the products we sell. Our online store is designed to provide you with a safe and secure environment to browse our product catalog.

Legal

Company Info

Important Links