Resize 300RUM to 7RUM

Captn C · #1 12-27-2007, 12:54 PM

I am gearing up to reload for the 7RUM and ran into a bunch of once fired 300 RUM brass.

Can I neck it down and use it?

Any problems if I did?

7RUM brass is kind of expensive and there seems to be a bunch of 300RUM brass laying around....

NYLES · #2 12-27-2007, 01:17 PM

Yeap, but I havent found any expensive 7rum brass i get remmy brass for $22 a fifty.

Captn C · #3 12-27-2007, 01:20 PM

Quote:

Originally Posted by NYLES

Yeap, but I havent found any expensive 7rum brass i get remmy brass for $22 a fifty.

Where?

I was looking around on the web and it was 1/3 more than 300RUM. I also couldn't find many who had it.

Thanks Nyles!

NYLES · #4 12-27-2007, 02:18 PM

Local reloading shop.....might be $24 a fifty. Remember Full lenght on that once fired 300 stuff.

davewilson · #5 12-27-2007, 09:57 PM

i've run the 300 into a 7FL die and didn't have any problems. of course it was new stuff. would be nice if you had a bushing die. could get an in between size bushing and go in 2 steps but i don't think that will be necessary. try one and if it gives you any trouble, you might have to anneal the necks. when i did this my necks had concentricity issues.