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33 wcf chamber dimensions

dandak1
Anybody know where I can get, online, chamber dimensions for the old 33 wcf? Leverguns does not list it, and it is not in my friends NRA book that has chamber drawings. Dunlaps "gunsmithing" does not have it either. Thanks to all in advance.
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9 comments

Date Votes
  • captkirk3@dslextreme.com
    You have Mail....Best....CK
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  • Tailgunner1954
    Not chamber dimentions, but the following are taken from my sample of a 33WCF round (close enough if your trying to ID a chamber casting)

    Headstamp Rem-UMC 33 C.F
    Bullet diameter at case mouth 0.338
    Case length 2.112
    OAL 2.745
    Rim Diameter 0.596
    Base Diameter 0.501
    Shoulder Diameter 0.431
    Mouth Diameter 0.359
    Length to shoulder 1.607
    Length to neck 1.731
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  • dandak1
    Thanks tailgunner. I need the dimensions because I am going to make a chamber reamer (am rebarreling a winny 1886), so I want the actual SAAMI specs.
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  • Tailgunner1954
    quote:Originally posted by dandak1
    Thanks tailgunner. I need the dimensions because I am going to make a chamber reamer (am rebarreling a winny 1886), so I want the actual SAAMI specs.

    Contact Dave Manson at Manson Reamers or Dave Kiff at (if I remember correctly) Pacific Tool & Gauge, they should have the specs to make one for you (unless your dead set on making your own reamer in which case they may, or may not be willing to send you a reamer print to work from).
    Another source is White Rock Tool and Die (no web site), they rent various chambering reamers, and may have the 33WCF in stock
    Both are real good guys to deal with, BTW.
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  • givette
    cd33winchester.jpg
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  • dandak1
    Thanks Givette! Where did you obtain that??? I couldn't find this anywhere.
    Tailgunner, PTG has it as a special order..I was told 4 months. Never checked with Manson but the usual sources (Brownells and Midway) do not list his in 33 wcf. I dont want to rent...with shipping/insurance both ways ($35 + 10 + 10 = $55) it winds up only being half price from buying one so i may as well buy it and either keep it or ebay it after I am done. Plus owning it I can work at my leisure should other duties come up.
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  • Tailgunner1954
    I ordered a "wildcat" reamer and Go gauge from Manson (actually I stopped in for a visit), IIRC while I was told it may take a 2-3 months, in reality it was something like 3 weeks until I got called to come pick it up.
    Skip the middle man, and go direct to the maker (Manson or Kiff).
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  • nononsense
    dandak1,

    "I need the dimensions because I am going to make a chamber reamer (am rebarreling a winny 1886), so I want the actual SAAMI specs."

    Have you ever made something like a chamber reamer before?

    Reamer geometry is different from just turning something out on the lathe in tool steel. If you have the knowledge and experience to make a good reamer, I would call PTG's office and request a chamber drawing or reamer drawing. They supply these frequently to those of us who work with chamber drawings instead of cartridge dimension drawings.

    If you get stuck I have the chamber specifics. The drawing that Givette was kind enough to locate for you is a cartridge dimension drawing and doesn't have the specifics of a chamber drawing.

    Best.
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  • dandak1
    Hi nononsense. Thanks for the post. Yes I have made several chamber reamers before. With the dimensions supplied and a chamber cast from my current 33 wcf barrel that is being replaced I know I can do the job right (ie: can now compare the cast with the case dimensions and check if clearances are correct, etc.), I would rather just buy one though (lot of irons in the fire right now) since it would save a lot of time if they were available. I just didnt want to wait the 4 months. Like others posted though, I will personally try to contact some of the other manufacturers first.
    You also raise an intriguing point. The Sept or Oct 1973 issue (forget which) of the American Rifleman has an article about making "D" reamers, where you DO just turn tool steel in a lathe, harden it, then grind part of it in half. My very first two reamers (years ago...I dont want to count how many!) were made that way and they worked fine, altho the chamber cutting was so s..l..o..w... I should mention they were for the 22 Short and the 22 Magnum, being quite easier than bottlenecked chambers! However, the method could be used for any chamber. That was years ago and now the place where I work has the sophisticated tooling to allow me to make regular 6 fluted reamers. Again though, I am going to exhaust the commercial route before I do this.
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