50 BMG Questions

ADIDAS69 · April 20, 2010, 12:13 AM

Hey i am looking at getting a 50 BMG (bushmaster). That's not the question. i have been reading up and it seems like there is confusion over chambers and resizing, like maybe there is no standard size for the 50 BMG chamber across brands. Does anyone know hwy that is.

50 shooter · April 20, 2010, 12:22 PM

You can specify if you want a match or field chamber when you buy the rifle, that's what's usually offered. Where you might be confused is when it comes to bench rest rifles. They offer different types of chambers for the customer, one being a bore rider. That and they will also tighen up the neck area of the chamber for better accuracy.

That means that a match/hybrid, match and bore rider, you'll need to turn the necks as regular off the shelf brass won't fit because the necks will be to large. If you just want to bust rocks and do some other plinking, go with a standard chamber. That way you can shoot surplus ammo or reload surplus brass and not worry about turning the necks.

Some die makers do have inserts to resize the necks if you have a match chamber. This way guys can specify what they want when they order their dies. With a standard chamber and standard dies for reloading it will resize them back to the original case specs set for the original military cartridge.

April 20, 2010, 12:13 AM	#1
ADIDAS69 Senior Member Join Date: October 17, 2009 Location: Seattle Posts: 381	50 BMG Questions Hey i am looking at getting a 50 BMG (bushmaster). That's not the question. i have been reading up and it seems like there is confusion over chambers and resizing, like maybe there is no standard size for the 50 BMG chamber across brands. Does anyone know hwy that is. __________________ "...I would walk with my people if I could find them..."

April 20, 2010, 12:22 PM	#2
50 shooter Senior Member Join Date: August 6, 2002 Location: SoCal PRK Posts: 986	You can specify if you want a match or field chamber when you buy the rifle, that's what's usually offered. Where you might be confused is when it comes to bench rest rifles. They offer different types of chambers for the customer, one being a bore rider. That and they will also tighen up the neck area of the chamber for better accuracy. That means that a match/hybrid, match and bore rider, you'll need to turn the necks as regular off the shelf brass won't fit because the necks will be to large. If you just want to bust rocks and do some other plinking, go with a standard chamber. That way you can shoot surplus ammo or reload surplus brass and not worry about turning the necks. Some die makers do have inserts to resize the necks if you have a match chamber. This way guys can specify what they want when they order their dies. With a standard chamber and standard dies for reloading it will resize them back to the original case specs set for the original military cartridge. __________________ I see the world thru bloodshot eyes Streets filled with blood from distant lies The dogs of war never compromise, No time for rearranging.