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.32 rimless vs. .32 ACP

geeguygeeguy Member Posts: 1,047
edited April 2004 in Ask the Experts
I see many Colt semi-auto's listed as .32 "rimless/smokeless". Yet I cannot find a listing for this round anywhere. Is this the same as the standard .32 ACP round?

Comments

  • Bert H.Bert H. Member Posts: 11,281 ✭✭✭
    edited November -1
    Yes

    Bert H.

    Real Men use a SINGLE-SHOT!

    WACA Historian & Life Member

  • CHGOTHNDERCHGOTHNDER Member Posts: 8,936 ✭✭✭
    edited November -1
    I have the Colt that shoots that round (model 1903), it was made in 1921 and fires great.

    PJ

    If nobody seen you do it, how could you have done it. NRA Life Member, AF&AM
  • MIKE WISKEYMIKE WISKEY Member Posts: 10,045 ✭✭✭✭
    edited November -1
    two names for the same cartidge.
  • v35v35 Member Posts: 12,710 ✭✭✭
    edited November -1
    They're both the same round and are semi rimmed not truly rimless.
  • HangfireHangfire Member Posts: 3,010 ✭✭✭
    edited November -1
    Its European designation is 7.65

    Love them Pre-64's!!!!-Bob
  • HangfireHangfire Member Posts: 3,010 ✭✭✭
    edited November -1
    quote:Originally posted by mrmike08075
    not to be confused with the .32 AUTOMATIC COLT / .32 A.C. which has a "semi-rim" or the .32 COLT AUTOMATIC POLICE / .32 C.A.P.H..

    while these rounds often function flawlessly in .32 ACP guns, and .32 ACP ammo can be used safely in .32 AC guns, they are not the same, exact round...

    if you are not confused enough, its not my fault. ICONOCLAST can tell you the exact differances, specs, and interchangability. best regards, mike.

    What other dungeon is so dark as ones own heart, what jailer so inexorable as ones own mind.




    Interesting....I have never, ever heard of this. What gun was it chambered in?

    Love them Pre-64's!!!!-Bob
  • rufe-snowrufe-snow Member Posts: 18,650 ✭✭✭
    edited November -1
    quote:Originally posted by mrmike08075
    not to be confused with the .32 AUTOMATIC COLT / .32 A.C. which has a "semi-rim" or the .32 COLT AUTOMATIC POLICE / .32 C.A.P.H..

    while these rounds often function flawlessly in .32 ACP guns, and .32 ACP ammo can be used safely in .32 AC guns, they are not the same, exact round...

    if you are not confused enough, its not my fault. ICONOCLAST can tell you the exact differances, specs, and interchangability. best regards, mike.

    What other dungeon is so dark as ones own heart, what jailer so inexorable as ones own mind.





    Horse Pucky!


    The only ( 2 ) true rimless .32/7.65 x 17mm cartridges that I'm aware of are the 7.65 x 13mm Roth Sauer circa 1900, and the Chinese 7.65 x 17 special round for the silenced Type 64 & 67 pistols, circa 1960's.

    It goes without saying that John Browning chambered none of his pistols, for the above two cartridges.

    luger_4.jpg
  • rufe-snowrufe-snow Member Posts: 18,650 ✭✭✭
    edited November -1
    quote:Originally posted by mrmike08075
    we just sold a box of .32 A.C. / .32 AUTOMATIC COLT ammo to a collector, who has a semiautomatic colt marked ".32 AUTOMATIC COLT". there is a definite rim to the case, differant from the standard .32 acp round. i am sure that TEAK can set you straight on the differance and correct nomenclature as well as provide a history.

    i won a free lunch here at the shop from an "expert" who told me the rounds were identical, and that my ammo had no discernable rim. he was wrong as well. i handled the ammo, in its original factory box, and the gun with its slide markings.

    sorry, your just wrong. best regards, mike.

    What other dungeon is so dark as ones own heart, what jailer so inexorable as ones own mind.



    What the heck are you babbling about?

    The .32 Auto/7.65 x 17mm has a base diameter of .336 and a rim diameter of .354.

    In your original post, you made this statement,

    "not to be confused with the .32 AUTOMATIC COLT / .32 A.C. which has a "semi-rim" or the .32 COLT AUTOMATIC POLICE / .32 C.A.P.H..
    while these rounds often function flawlessly in .32 ACP guns, and .32 ACP ammo can be used safely in .32 AC guns, they are not the same, exact round"

    I interinterpreted this to mean, that YOU maintained there was a special RIMLESS .32 Auto cartridge developed for the Colt Model 1903's.


    luger_4.jpg
  • rufe-snowrufe-snow Member Posts: 18,650 ✭✭✭
    edited November -1
    quote:Originally posted by mrmike08075
    the gun in question functions with .32 acp ammo, but is designated as and designed foe the .32 A.C. / .32 AUTOMATIC COLT round (wich has a different rim, and case length).





    As I said in my original post, Horse Pucky! The only difference is in the standard manufacturing tolerences that are common between different manufacturers.

    luger_4.jpg
  • IconoclastIconoclast Member Posts: 10,515 ✭✭✭
    edited November -1
    Mike, I would, with thanks, decline the mantle of expertise you offer, but none of my references, and especially the definitive book which would pertain to that era (White and Munhall, 1948, 1950, 1967 Pistol and Revolver Cartridges), distinguish between the ".32 Automatic Colt," the ".32 A.C.P." or any of the other thirty or so names which have been used for this round over the years as representing a different cartridge. Different makers may use different slightly different tolerances and the dimensions can vary within the same maker's product line, especially over time. Even today, with SAAMI specs, you will find differences of this nature. In earlier times, the variations tended to even more pronounced. I'm very sure these are the same round, albeit with the dimensional variations you noted.

    Although it is called "rimless," the .32 is in fact a semi-rim (a fact I didn't realize until very recently - commercial ammo is not the focus of my interest in collecting). Some of the cases may actually have rims the same diameter as the case body - I believe this round headspaces on the case mouth (not sure of that). There are so many tiny differences in loads, headstamps and dimensions in these common rounds . . . except when I first started, and like most novice collectors naively wanted "one of everything," did I pay much attention to these details. The pin feathers may be blue-green instead of green-blue, but it is still the same duck to the best of my knowledge and resources.

    "There is nothing lower than the human race - except the French." (Mark Twain) ". . . And DemoCraps" (me)
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