Barrel Slug Diameters

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Barrel Slug Diameters

Postby Ranch Dog » 25 Sep 2012 11

Thought I would add a post with the slugged diameters of the Rossi's I own. I will need to add to this as I have time because I will be reslugging them all. Please feel free to add your measurements. As a standard, a lead teardrop fishing sinker with a hole through the longitudinal axis should be used. The measurement should be taken with a micrometer to .XXX5", a caliper should not be used.

Diameters used in this list are display "bore/groove", measured in inches.

Cartridge
  • 30-30 Win
    • RG3030 - .3000/.3080
  • 357 Mag
    • R92 - .3450/.3550
  • 44 Mag
    • R92 - .4200/.4285
    • Wizard - .4200/.4285
  • 45 Colt & 454 Casull
    • R92 - .4430/.4510
  • 45-70 Govt
    • RG4570 - .4500/.4570
    • Wizard - .4500/.4570
  • 480 Ruger
      R92 - .4695/.4765
Last edited by Ranch Dog on 15 Mar 2013 12, edited 4 times in total.
Reason: More measurements noted.
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Re: Barrel Slug Diameters

Postby joec » 24 Oct 2012 14

Have you done this with your 45 Colt, RD?
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Re: Barrel Slug Diameters

Postby Ranch Dog » 24 Oct 2012 19

joec wrote:Have you done this with your 45 Colt, RD?


Yes but just haven't had the time to post it. I will dig it out.
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Re: Barrel Slug Diameters

Postby akuser47 » 24 Oct 2012 20

I new RD would have this info glad I did not just jump the gun I figured this would be a caliber he would have info on.
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Re: Barrel Slug Diameters

Postby Ranch Dog » 24 Oct 2012 21

There you go.
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Re: Barrel Slug Diameters

Postby mikld » 26 Oct 2012 15

Wow, .44 at .4285 groove dia.? My Puma slugs out at .4315"-.432". LSI model purchased in Sept. '07...
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Re: Barrel Slug Diameters

Postby Centaur 1 » 05 Nov 2012 20

Might as well add the numbers from my rifle.

Rossi Rio Grande
Cartridge .30-30 wcf
.302"/.310"
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Re: Barrel Slug Diameters

Postby joec » 05 Nov 2012 20

A couple of question on actually slugging the barrel with the lead sinker. Is this done from the bolt side or other end of the barrel. Now I assume the two dimensions are the actual bore size and the larger one is the rifling in the barrel. Last but not least is how far is the lead sinker pushed into the barrel and how?
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Re: Barrel Slug Diameters

Postby Tazman1602 » 07 Nov 2012 16

REALLY Michael?

So your bore on your 92 .357 mag actually slugs at .355? THAT would be a pleasant surprise, guess I've got to go get some more fishin' weights and drive one down through mine. IF mine were to slug the same, would I be safe using cast sized at .359 which is what the rest of my .357's take or is that something you can answer?

I have zero problem with getting another sizer made to accomodate this rifle, Buckshot over at Cast Boolits makes them for my RCBS and Lyman sizers very reasonably. Man that would be great if it would slug that as I've got an HP 358156 Lyman (Eric at Hollowpoint molds did it for me) but it drops at .358 or a bit less, most of my custom molds I have at .360 so I can shove them around as I wish.............

THANKS for the baseline, I'll post mine as soon as I get up the nerve...........

Just got off the phone with Braztech regarding the sight height issue, I'll start a new post on that........

Art


Ranch Dog wrote:Thought I would add a post with the slugged diameters of the Rossi's I own. I will need to add to this as I have time because I will be reslugging them all. Please feel free to add your measurements. As a standard, a lead teardrop fishing sinker with a hole through the longitudinal axis should be used. The measurement should be taken with a micrometer to .XXX5", a caliper should not be used.

Diameters used in this list are display "bore/groove", measured in inches.

Cartridge
  • 357 Mag
    • R92 - .3450/.3550
]
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Re: Barrel Slug Diameters

Postby Dan 444 » 07 Nov 2012 17

Dang, don't own a Rossi yet. I've got slugged measurements from all of my Marlins, but their oversize measurements wouldn't add value to this thread. Be patient with me, guys....I'm strongly leaning the Rossi way....I won't jettison all of my Marlins, I'll just add Rossis (sp?) to the gang.

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