Forums.NitroExpress.com

Home | Ezine | Forums | Links | Contact NitroExpress.com: Inside size of 12 gage shotgun shell

*** Enjoy NitroExpress.com? Participate and join in. ***

You are not logged in. [Login]

Main Index · Search · Active Topics
New user · Who's Online · FAQ · Calendar

Shooting & Reloading - Mausers, Big Bores and others >> Shotguns

Pages: 1

TomN
.300 member

Reged: 07/03/10
Posts: 149
Loc: washington

Inside size of 12 gage shotgun shell
#257816 - 13/12/14 02:31 PM

Hi all I was just worunding if anyone could tell me if a .730 size slug would fit iside a new 12 gage shot shell. I have been working on building a 12 bore dubble and would like to use the # 399 nie mold when it come time to refulate it but doin't know what the inside of the shell will take. if that is to big to fit what is the largest that could be used? Thanks Tom N

Post Extras:

Marrakai
.416 member

Reged: 09/01/03
Posts: 3482
Loc: Darwin, Top End of Australia

Re: Inside size of 12 gage shotgun shell [Re: TomN]
#257819 - 13/12/14 04:24 PM

More important to match the slug to your bore or rifling grooves, depending on what you are actually building. The loaded cartridge then has to be a drop-in fit to the chamber.

Most people say its best to get a mold to cast slightly oversize and push through a sizing die for uniform dia and concentricity.
Plastic shot-shell hulls are flexible and should take a .730 slug no worries, without sticking in a normal 12-bore chamber. I load .735 slugs routinely for a nitro paradox. I even made a hand-tool to flare the case-mouth slightly to make them easier to seat in the hull. Still roll-crimps onto the Fosbery shoulder just fine.

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

Post Extras:

DarylS
.700 member

Reged: 10/08/05
Posts: 26514
Loc: Beautiful British Columbia, Ca...

Re: Inside size of 12 gage shotgun shell [Re: Marrakai]
#257837 - 14/12/14 05:24 AM

You merely need to measure inside diamet3er of various plastic hulls, paper or brass to see what they will take.

Different makes of plastic hulls have differing thicknesses of plastic as well. Some are straight sided inside, some have tapered thickness hulls and might require different sized wads, etc.

Since a person needs a good set of calipers to load ammo, everyone has at least one set.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

Post Extras:

Pages: 1

Extra information

0 registered and 8 anonymous users are browsing this forum.

Moderator: NitroX

Print Topic

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Topic views: 1444

Jump to

NitroExpress.com

Home | Ezine | Forums | Links | Contact