What is "LONG THROATED" ???? RUGER NO.1

TWSLUGGUN

Hi,
Im interested in buying a Ruger NO.1 in 45-70 and it has been
"LONG THROATED" they said it was done so they could shoot a 500 grain bullet.
Im just a little concerned why a gun that is made to shoot 45-70 ammo would have to be re-worked to accept a 500 gr. 45-70 shell???
Arn't all 45-70 shells the same lenght??
Maybe someone on here can educate me on this.
Thank you............

Tailgunner1954

The throat is the transition area between the chamber (where the brass case would sit) and the rifling. It starts off just over groove diameter and smooth, and ends at the point where the rifling is at bore diameter.
To "long throat" is to extend this transitional area, perhaps reducing the angle of the throat at the same time (a 1^/side throat will be longer than a 5^/side).

MIKE WISKEY

this is done to increase case capacity (in this case) or to reduce chamber pressure (weatherby cases). the 500 gn. .45 cal. cast bullets can be very long and seating them out farther than factory standard leaves much more room for (black) powder.

mrbruce

Also called freebore---Weatherby has been doing it for years...
It just lets the bullet jump more before it hits the rifling, and in doing so reduces the pressure.
No big deal other than if you plan on shooting light weight bullets out of it.

D.S.COLE

all the answers youve gotten are right .the Ruger action is very strong ,far more so than the old blackpowder rifles the cartridge was developed for.
factory ammo is loaded very mild to accommodate the old actions.
in a modern action you can load it way hotter than factory. the loading manuals have specific sections of data for old and modern rifles.most factory rifles are still chambered according to the original specs,by lenghthening the throat you can seat the bullets out of the case without running into the rifling and also make room for more powder in the case.this creates a much better situation for handloaders to use much more powerful ammo .
if you dont reload and shoot only factory ammo then you dont need a throated chamber.

TWSLUGGUN

quote:Originally posted by mrbruce
Also called freebore---Weatherby has been doing it for years...
It just lets the bullet jump more before it hits the rifling, and in doing so reduces the pressure.
No big deal other than if you plan on shooting light weight bullets out of it.

Thanks for the info....NOW...I don't plan on shooting hot loads out of it,I use the Federal 300 gr.bullets will there be a problem with them???? Thanks

D.S.COLE

you should not have any problems with what you plan to use.
it should be pleasant to shootand work fine.