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Thread: 30 Bobcat

  1. #21
    Boolit Buddy
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    isn't this just a few % increase in case capacity over the 32-20?

    I never thought I would be 'that guy' when it comes to experimenting with wildcats. But in a singleshot, why not go with a 32-20? Especially if you need to find a reamer and what not for the barrel.

    In a levergun however, this would be fun because there are 357 level guns. So I would guess 30 bobcat would feed pretty well in the modern levers. Cant really find many 32-20 modern lever rifles.

  2. #22
    Boolit Buddy
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    All it really offers over the 32-20 is lots of easily obtainable and stronger brass. I did both a .38 Special and .357 Mag version 20 years ago, never got around to building a reamer for them. I think it would be great in a strong lever action, same as the .30 Paxton, .30 Badger, all good cartridges.

  3. #23
    Boolit Master

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    30/357max works pretty well. Made mine about 31 years ago. Has a 30-30 length neck

  4. #24
    Boolit Buddy
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    Quote Originally Posted by Hamish View Post
    Tom,

    By any chance, do you have a set of 300 Blackout dies to do a comparison? Would be quite interested to see the dimensional differences between a .30 Bobcat and a .300 BLK rimmed.
    I have blackout dies. If you want to send me some brass I can run them into a sizing die.

  5. #25
    Boolit Master

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    Quote Originally Posted by ThomR View Post
    I have blackout dies. If you want to send me some brass I can run them into a sizing die.
    Misunderstanding. Was asking Trophy Tom if he had both sets of dies to be able to compare. Thank you though.
    More "This is what happened when I,,,,," and less "What would happen if I,,,,"

    Last of the original Group Buy Honcho's.

    "Dueling should have never been made illegal in this country. It settled lots of issues between folks."- Char-Gar

  6. #26
    Boolit Master
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    Think this would be a perfect conversion for the thick walled BSA 22rf martinis plus the cadet martini as well. 1x12 twist?. I already have a complete set of centerfire innards for a rf martini action. So all I would need is a suitable barrel. Does RCBS do special custom dies anymore. Seem to remember that after Jay Postman either retired or passed away they said that they wouldn't be doing specials or customs anymore. Frank

  7. #27
    Boolit Master
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    Quote Originally Posted by rockrat View Post
    30/357max works pretty well. Made mine about 31 years ago. Has a 30-30 length neck
    Will you post a Pic of this cartridge. I had a contender bbl made in 300/221 rimmed wit extractors for rimless and rimmed. I have been thinking about doing a long neck version.

    Did you have a reamer made?
    " If you cant do it with a 308 , you dont need to do it!

  8. #28
    Boolit Grand Master popper's Avatar
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    Allows bigger selection of bullets over the 32-20. With BO neck length you can load about anything but the lighter weight leaves the base in the neck so not much neck tension. BO brass is good for higher pressure so hotter loads. Longer neck get into 30/30 no throat situation - bad or good? More powder space- higher fps and psi.
    Been trying to find a cheap action to try - I have no use for flip open H&R or Henry. Side lever FB would be the way to go.
    Whatever!

  9. #29
    Just for fun. I ran a couple of 357 Max casings in the sizer.
    One all the way down to the rim.
    The other just enough to for the neck.
    This is what they looked like.




    Sent from my iPhone using Tapatalk Pro

  10. #30
    Boolit Master

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    As a seven year old trapped in an old body, no one appreciates the allure of an exotic toy more than me. I went the route of getting a barrel stubbed onto a Handi 20 ga. barrel and chambered for .30 Badger. .38 brass run through a 7.65 Tok die will get you cheap brass. And it is fun to shoot 90 gr. bullets over 2 grs. of Bullseye.

    However, with appropriate powders, bullets, and reloading instructions, my 308/30-06 with a few adjustments to a powder scale will quickly become a .30 badger, 30 Tom cat or 30 max cat with no attendant cost of new and custom dies or brass.

    Just my two cents worth.

  11. #31
    Boolit Master

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    GARD72977---- will look for a pic for you. Yes, I did have a reamer made

  12. #32
    Boolit Grand Master popper's Avatar
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    Playing the other day I cut the neck off 30/30, measure ID & OD, ran through a 9mm sizer to BO shoulder length. Neat - virtual 'straight wall' rimmed 358. More case capacity than 350 Legion. I'd push one down to 30 for a 'pigmy' but don't have a die. Just because I can and case fill & efficiency go up.
    Click image for larger version. 

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    Whatever!

  13. #33
    Boolit Mold
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    It might do service as an interim stage on the way to .256 WM.

  14. #34
    Boolit Master

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    Quote Originally Posted by MI2600 View Post
    It might do service as an interim stage on the way to .256 WM.
    It does.
    More "This is what happened when I,,,,," and less "What would happen if I,,,,"

    Last of the original Group Buy Honcho's.

    "Dueling should have never been made illegal in this country. It settled lots of issues between folks."- Char-Gar

  15. #35
    Boolit Buddy
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    It's been done a dozen different ways before, but it's still interesting to me. I have "converted" an old blackhawk cylinder to 30/357, to use in my .30 blackhawk. I have gotten an eighty five grain HP up to almost 2000 fps in it. And the loaded bullets cycle through a 357 rossi like greased butter! I'm very much planning to reline a rossi to .30 and rechamber for the new round. I bought a new rifle to do it to 3 years ago, but got off on other projects and haven't done it yet.

    Since rifles usually gain about 500+ fps over a pistol, with the slower powders, I'm pretty sure 2500 would be easy, but I bet it would get closer to 2700. I can't remember off hand what my noe 311008 (actually .308" ) were going. But all the loads I tried shot as well as the carbine loads do, being just as accurate but a good bit faster.

    Ya'll might be interested in this article about the round. http://www.zecamat.com.br/pag0118.htm

  16. #36
    Boolit Grand Master popper's Avatar
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    Well, stuffed a 9mm 130gr into 30/30 for a 358 short. Interesting. Should be able to get 26gr POWDER into it no problem. Just rechamber a 357 levergun? Or neck down to 30 cal and an insert into a 30/30 marlin - maybe would even feed heavy bore-ridder?
    Click image for larger version. 

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    Whatever!

  17. #37
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    I was looking at that idea 20 years ago, but life got in the way. A necked down 357 in a .30 Carbine Ruger Blackhawk would be a hoot, heck the .30 Carbine is a hoot to shoot. And I have two other Blackhawk's with necked down cartridges, I need a third.
    Antique Reloading Tool Collector, Historian and Writer
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  18. #38
    Boolit Grand Master Texas by God's Avatar
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    So, you want your .30 cal Blackhawk to be LOUDER?

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  19. #39
    Quote Originally Posted by Texas by God View Post
    So, you want your .30 cal Blackhawk to be LOUDER?

    Sent from my SAMSUNG-SM-G930A using Tapatalk
    is that possible ?

  20. #40
    Boolit Buddy
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    "is that possible ?"

    OOOOOH yes it is! I'll have to look at my notes to get the powder charge, but with the 85 grain and a full load of 300MP, it was noticeably louder, and flashy. The cylinder I used was from a 45 colt blackhawk, and the barrel cylinder gap was pretty wide. So yes, LOUD.

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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