30/8mm Rem Mag Question

[noexperience]

having lost my reloading dies for this cartridge and of course knowing the reloads will only be used in one rifle, can I neck size using a 300 weatherby die? I would think so, given the 30/8 is nothing more than a blown out 300 weatherby, that the die could be adjusted to just size the neck, correct?
thanks

 

[IdahoCTD]

I'm pretty sure the .300 Weatherby is smaller in the shoulder then the 8mm Mag so it would be sizing the shoulder as well as the base of the case.

 

[Gene Jr.]

Sounds similiar to a 308 Baer which Redding makes dies for. Might be something to look into. There are a number of improved 30 cal magnums out there. You should be able to find something off the shelf that will allow you to reload once fired brass.

Personally, I would have a set of custom dies made for it. If the gun isn't worth investing in dies for, then rebarrel it.

Gene

 

[shortgrass]

Hornaday .30 cal. neck sizing die. About $27 from Midway.

 

[IdahoCTD]

Hornaday .30 cal. neck sizing die. About $27 from Midway.

That is what I have use for mine in addition to a 8mm Mag die to full length size. You can actually buy the .308 seater insert for the 8mm Mag dies from Hornady to do it all.

My .30-8mm just shot a .96" group at 550yds with 210gr Matrix bullets @ 3100fps. I tried Bergers prior to the Matrix bullets and they shot pretty well but not nearly as good as the Matrix. With groups that size and a BC of .752 it's a win win IMO.