7mm rum question

[dave1]

I havent looked into my books yet but. is the 7 rum case the same as the 300 rum? if so what process's need to be changed?
Dave

 

[gamedog]

They are the same other than neck diameter.

 

[J E Custom]

I havent looked into my books yet but. is the 7 rum case the same as the 300 rum? if so what process's need to be changed?
Dave

Dave .

They are the same except the neck dia. and neck length.

All you have to do is run the 300 case through the 7RUM sizing die and depending on
your chamber you may have to turn the neck if it is to thick.( but probably not ).

To find out ,Measure the case neck OD of one of your fired 7 RUM cases, Then size and push a
7 mm bullet in one of the 300 RUM cases and measure the OD of the neck with the bullet in it.

There are other ways but this way all you need is a micrometer.

If it is less than the fired 7mm case neck then your home free.

J E CUSTOM

 

[dave1]

I WILL consider myelf a novice reloader. i reload everything i own except 17hmr, and shotguns.
I have read about neck turning but i hear its for the expeirenced . i cant remember much about how its done. i will have to read ?
my only advantage is trying to get some brass from some1 who dont reload the 300 or 7 rum. witch is prolly hard. Any tips?

 

[dave1]

lol whats the OD .... unless im not thinkin i dunno?

 

[dave1]

it cliked after i hit send ..overall diamater?

 

[J E Custom]

it cliked after i hit send ..overall diamater?

Sorry.
Outside diameter.

J E CUSTOM

 

[dave1]

I C .. WELL NE way what the job consist of?

 

[MontanaRifleman]

Dave,

Turning necks isn't that difficult. I've done it with my BCBS power trimmer. works like a champ. You might practice on a couple of old cases first.

You can also order (backorder) 7RUM brass from Midway or maybe some other online dealer, do a google on 7mm RUM Brass. Rem makes the brass.

Or you cam buy factory ammo and keep the brass.

 

[dave1]

YAH i wish nosler would.. i have to read more on the subject i dont really wanna mess it up.. i dont need that rcbs case station thing?

 

[txlongrange]

I use and recommend the Sinclair neck turners; however, there are plenty more out there that work just as well.

Here is a link if you want to check them out: Welcome to Sinclair International's Online Store

Take care,

TXLR

 

[dave1]

sinclair stuff is so nice, i dont own anything sinclair, but everything looks like great quality. so the neck turner . turns neck to whatever spec u have its set at, rolls the brass like? Im def. goin to read some more when i get some quiet time

 

[MontanaRifleman]

YAH i wish nosler would.. quote]

I've read a lot of mixed reviews on Nosler brass, you might want to read up more on that. Remmington isn't the best brass in the world, but it works. I've heard a rumor that Lapua might start making 300 RUM brass. So far, just a rumor as far as I know.

 

[dave1]

i.c. i really like rem anthing . all there products ive owned are great!