Thought I would add something to the conversation/post. after doing a reality check on brass for myself in general.
First, I am a huge fan of all the RUMs because It is such a good case design and also great for wildcatting. It seems to be a very forgiving cartridge when re loaded and very accurate with lots of power. my latest wildcat using the 375 RUM brass (Same dimensions as the 7mm and the 300 RUM) will hold 119.9 grains to the bottom of the neck. This design has squeezed every bit
of space out of the case and appears to be as good as the other wildcats based on this case. with straighter sides and a 40o shoulder, the brass should last a long time if loaded reasonably.
When I started loading for the 300 RUM, Remington brass was $47.00 for a bag of 50. I bough lots of it to get the same batch. later I began wildcatting the cartridge so I bought a bunch of 375 RUM Brass. It ranged from $ 54.00 to $73.00 a bag of 50 ($1.46 each) . the last I bought was $107.00
per 50 rd bag ($2.14 ea).
Now it is $2.72 to $2.75 each. 338 Lapua is $2.60 each, and everything in 270 WSM to 300 RUM
in large capacity cases average $2.75 each. when you go above that, the price really goes up. from $3.40 to $6.60 each.
So I don't feel so bad now that I have put everything into perspective. (I wished the RUM brass was cheaper) but it appears that almost all of the newer designed cartridge brass has gone up.
The real common Cartridges average $.75 to $1.00 each so If you want a cartridge with over 80 grains of capacity, you/I will have to pay more.
Even though it is more than double some brass, I will continue to buy what I need because it is such a great cartridge. Note: Norma brass is very good brass and much cheaper than Nosler, so even though I am a Nosler fan, I think the Norma brass is superior and a better buy for the money.
If you want/like the RUM cartridge, buy some Norma brass and don't look back.
Just my opinion
J E CUSTOM