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Norma MRP
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Was at a Cabelas last week and saw some Norma MRP on the shelf. I have not seen any MRP in 10 years, maybe 15... I bought 2 lbs just on impulse. Now I cannot find any loading data...
I have a old 300 Wea. I thought I would try some in.
Never thought I would see this product again. I think it said on the side of the container that it is distributerd by Western Powders. It is in the same type of container as AA powders.

EZ
 
Posts: 3256 | Location: Texas | Registered: 06 January 2009Reply With Quote
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If all else fails you can get by with RL22 data.

Many call them the same powder. Depending on the lot of RL22 it is sometimes a gr or 2 hotter than MRP.

I have some RL22 that loads gr for gr with my old MRP loads.


As usual just my $.02
Paul K
 
Posts: 12881 | Location: Mexico, MO | Registered: 02 April 2001Reply With Quote
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Norma MRP is very good stuff. It's been on sale from Powder Valley and Midway for quite some time. It was a replacement for N205. Thus, N205 data may be a good approximation, in addition to the R22 data suggested by Paul.
 
Posts: 3720 | Registered: 03 March 2005Reply With Quote
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Posts: 3611 | Location: Sweden | Registered: 02 May 2009Reply With Quote
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I have an old Hornady 3rd edition that shows a bunch of MRP data for the 300 Wby. 75-85 grs for a 165 gn SP, 72-81 grs for a 180 gn SP. One needs to use caution with that dated info though.
 
Posts: 10189 | Location: Tooele, Ut | Registered: 27 September 2001Reply With Quote
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I believe Waters pet loads has MRP loads for some cartridges.
 
Posts: 1991 | Location: Sinton, TX | Registered: 16 June 2013Reply With Quote
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