I have had trouble finding Norma MRP in Maryland, USA. I found a gun store that had two cans that seemed rather old. The owner said they have been around for a long time but sealed in a cool dry place. I wrote Norma
about it, but no reply as of yet.

The can says Norma Magnum Rifle Powder. It has a label with a Product Number:93215 and another number on the label 679021. On the bottom of the can, it has the number 085051. Could you tell me if this is the same MRP you is currently sold as MRP and if you would think it would safe to use. If it isn't the same MRP, could you tell me the burning rate? I will using to load 300Remington Ultra Magnum with 190 grain Hornady bullets. Any info would be appreciated. I only paid 10 dollars for it so it won't be that much of a loss.

Also the powder is stick powder but a smaller stick than say H1000. It looks to be the size of IMR 4064 or so.

Thanks
BC

Big C,
I haven't got a direct answer for you but maybe a parrallel to it.
I have some old IMR powder that I use that was given to me and I am using the normal loading recommendations of the newer manuals. AAMOF I just got an older book that has the powder I'm using and it is the same. You see about 25 years ago about IMR used to be owned by DuPont the chemical and paint company and my cans have their name on them. I am also aware of old military surplus powder from WW 2 that is still being used to today. The thing to do is look at and smell the powder.
1 is it dark and uniform = good
2 does it have a moldy look to it = bad
3 does it smell like ether = good
4 does it smell more musty or like rotten eggs = bad
If it passes this test try it. Do you know if it is a double base powder?
The burn rate chart I'm looking at puts it right between IMR4831 and Hodgdon's 4831 so it would work real well in a 270 with 130 to 150 grain bullets. A 270 likes a little slower powder than 30-06 so it may be good with light bullets in your caliber but I have NO info on UM's and no mention of it in a 1970 book for any of the magnums of back then so it must be newer than that.
Hope this helps.
Ther must be somewhere on the net you can find a recipe' for it.

I would think it would be alright to use as long as it is not contaminated. To purchase Norma Powders go to www.grafs.com ph.:1-800-531-2666. Good luck.