Reloading EverythingMidSouth Shooters SupplyLoad DataLee Precision
WidenersInline FabricationSnyders JerkyRotoMetals2
Repackbox Titan Reloading
Results 1 to 10 of 10

Thread: RCBS New Uniflow drum feels really loose

  1. 10-19-2021, 10:39 AM #1
    possom813
    possom813 is offline
    Boolit Buddy
    possom813's Avatar
    Join Date
    Oct 2012
    Location
    Texas
    Posts
    475

    RCBS New Uniflow drum feels really loose

    Picked up an RCBS master kit, secondhand, but unused not long ago.

    I cleaned up the Uniflow and was messing with it and the drum feels really sloppy/loose compared to my other two Uniflows.

    It will move side to side about 1/8", the other 2 have a tiny bit of movement, but no where near as pronounced.

    Is this a new design, or a did I get a bad measure out of the box?
    I will fear no evil, for thou art with me.

    My Feedback Thread<->http://castboolits.gunloads.com/show...7793-possom813
    Reply With Quote Reply With Quote
  2. 10-19-2021, 04:01 PM #2
    Mal Paso
    Mal Paso is offline
    Boolit Master
    Mal Paso's Avatar
    Join Date
    Jun 2010
    Location
    Carmel, Ca
    Posts
    4,121
    Mine is a little less but still noticeable. Shouldn't hurt as long as the outside diameter fits well and the holes line up.
    Mal

    Mal Paso means Bad Pass, just so you know.
    Reply With Quote Reply With Quote
  3. 10-19-2021, 04:58 PM #3
    Winger Ed.
    Winger Ed. is offline
    Moderator


    Winger Ed.'s Avatar
    Join Date
    May 2007
    Location
    Just outside Gun Barrel City, Texas
    Posts
    9,690
    Not a RCBS, but my new Hornady measure seems to have a bit more side play than my older one from the 80s.

    Since the chamber in the housing is wide enough to compensate, it doesn't seem to matter.
    In school: We learn lessons, and are given tests.
    In life: We are given tests, and learn lessons.


    OK People. Enough of this idle chit-chat.
    This ain't your Grandma's sewing circle.
    EVERYONE!
    Back to your oars. The Captain wants to waterski.
    Reply With Quote Reply With Quote
  4. 10-19-2021, 05:49 PM #4
    popper
    popper is offline
    Boolit Grand Master popper's Avatar
    Join Date
    Jun 2011
    Posts
    10,581
    Side-to-side is fine.
    Whatever!
    Reply With Quote Reply With Quote
  5. 10-20-2021, 07:02 AM #5
    Land Owner
    Land Owner is offline
    Boolit Master

    Land Owner's Avatar
    Join Date
    Aug 2010
    Location
    Mims, FL
    Posts
    1,864
    https://www.rcbs.com/rcbs-parts-book.html

    Assure the Measuring Cylinder Bushing (#7) is held correctly in place by Bow Washer (#13) and Measuring Screw Lock Ring (#8) in the diagram linked above. There should be very little side-to-side movement when close tolerance parts such as these are aligned. Something is amiss.
    If it was easy, anybody could do it.
    Reply With Quote Reply With Quote
  6. 10-20-2021, 10:25 AM #6
    Mal Paso
    Mal Paso is offline
    Boolit Master
    Mal Paso's Avatar
    Join Date
    Jun 2010
    Location
    Carmel, Ca
    Posts
    4,121
    The side to side movement is restricted by #7 Measuring Bushing in the slot in the body. I don't see the problem.
    Attached Thumbnails Attached Thumbnails 1Parts_Book.jpg  
    Mal

    Mal Paso means Bad Pass, just so you know.
    Reply With Quote Reply With Quote
  7. 10-20-2021, 11:16 AM #7
    Three44s
    Three44s is offline
    Boolit Master
    Join Date
    Feb 2007
    Location
    Communism running rampant!
    Posts
    4,756
    It’s the fit between the drum and the bore that would be a concern if it existed, because fine powders would leak out.

    Three44s
    Quote Originally Posted by Bret4207

    “There is more to this than dumping lead in a hole.”
    Reply With Quote Reply With Quote
  8. 10-20-2021, 02:07 PM #8
    gwpercle
    gwpercle is offline
    Boolit Grand Master

    gwpercle's Avatar
    Join Date
    Sep 2011
    Location
    Baton Rouge, Louisiana
    Posts
    9,298
    Test it out ... the proof is the measuring. Set it up and record weights with a scale 25 weighed charges should give you an idea of cosistency ... if it can't throw consistent powder charges ...
    call RCBS and report the results ... I'm sure they would help .
    Gary
    Certified Cajun
    Proud Member of The Basket of Deplorables
    " Let's Go Brandon !"
    Reply With Quote Reply With Quote
  9. 10-22-2021, 12:09 AM #9
    Taterhead
    Taterhead is offline
    Boolit Master
    Join Date
    Mar 2016
    Location
    Idaho
    Posts
    1,102
    I have 4 of them. 2 each with standard and small metering cyclinders. All have side-to-side play. None leak - even with Accurate No. 2 which is like dust.. All throw consistent charges for all powders except 800-X and some of the larger extruded powders.
    "There is nothing like looking, if you want to find something."
    ~Thorin Oakenshield
    Reply With Quote Reply With Quote
  10. 10-24-2021, 10:49 PM #10
    JimKirk
    JimKirk is offline
    Boolit Man
    Join Date
    Dec 2008
    Location
    South Georgia
    Posts
    87
    The side to side is fine ....the outer diameter of rotor fit in the housing should not be loose but free to turn... I got my Uniflow in 1969 new ...
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules

Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check