heavy 30 M-1 Carbine

[maggot]

Has anyone loaded 200 or more grain bullet in this shell?Do you think it would work like the .300 whisper

[John Traveler]

Before you try loading and firing anything like that 200 grain M1 Carbine load...

Please keep in mind that the US Military PROOF load for the .30 M1 Carbine was a 150 grain spitzer bullet on top of the normal powder for the 110 grain ball!

What I'm saying is, the safety marin for the M1 carbine is pretty small, and firing heavy ball loads might not be such a good idea.

Even with small charges of powder, you won't get enough velocity to stabilize that 200 grain bullet in the V-E-R-Y SLOW rifling twist.

It would probably be something like trying to fire a slingshot.

[Nobade]

It works well in recent TC Contender barrels with their 1:10 twist. Makes a good big bore silhouette load, or for supressed applications. You can get around 1300 fps with max loads in a 10" TC using AA1680 and a 200gr. cast bullet. It won't work in a M1 Carbine or an old TC barrel with the 1:18 twist. You do have to use a bore riding design cast bullet, a normal spitzer won't leave you enough room in the case for powder.

[maggot]

Very interesting NOBADE.THanks

[The Cast Bullet Kid]

:-) Hi
Not sure if this is any help but I built a Martini action .32-20 on a .303 British barrel with a 1 in 9 1/2 twist.  I have a suppressor on it and shoot subsonic bullets (cast and jacketed) up to 180gr with great success.  Most accurate loads are 1 1/2 inches at 100m.
Had to develope my own data though and went carefully.
For reference seeing as the cases are about the same size:
165gr cast RN, 4.3gr Unique for 1020fps.
180gr jacket RN, 16.7gr W748 for 1010fps.
175gr cast FN, 4.6gr 800X for 1015fps.
Would be futile in a twist of less than 1 in 10 with 180gr + bullets though.
cheers
TCBK

[Graycg]

I'd check into some 32-20 contender loads, the carbine brass is a bit smaller, but much stronger....lots of loads out there for 150 and 170 grain cast bullets for sillywet shooters.  I'll look around to see if I can find any around here.

graycg