The Accurate Reloading Forums
Is Norma MPR the same as Reloader 19?
19 June 2009, 04:52
dgr416Is Norma MPR the same as Reloader 19?
I asked this a long time ago.I just wanted to make sure.I wanted to use it in my 338 if it is thanks .I wish I had not sold the extra I had its awesome powder !!!
19 June 2009, 06:55
Ackley Improved UserNorma MRP = Re22 = Win WXR & roughly equal to W780. Re19 is just a bit faster and Re25 is a bit slower. MRP is one of the BEST high-energy slow burning powders on the market - maybe the best.
19 June 2009, 11:29
Big StickNorma 204 = Re19
Norma MRP-2 = Re25
Both subject to the usual lot to lot variations in both lines.
1st H-4831
2nd norma-MRP
3rd RL-22
4th Win.-785
RL-19 is closer to N-160
norma 204
19 June 2009, 20:40
StonecreekThe Norma line of rifle powders and most of the Alliant line of rifle powders are made in Sweden by Bofors. Norma MRP is the same spec powder as RL-22, not RL-19 which is the same spec as N204.
These lines of powders are infamous for greater than average lot-to-lot burning rate variations. You can interchange MRP and RL-22 in essentially the same way you can interchange two different lots of either, ie., by backing off and working back to your original load watching pressure indications and velocity.
19 June 2009, 22:08
Tyler KempI heard that the MRP and MRP-2 have less variation than Reloder powders? Are they in fact the exact same? What a let down.
Love shooting precision and long range. Big bores too!
Recent college grad, started a company called MK Machining where I'm developing a bullpup rifle chassis system.
quote:
Originally posted by Tyler Kemp:
I heard that the MRP and MRP-2 have less variation than Reloder powders? Are they in fact the exact same? What a let down.
I know the Weatherby factory 338-378 loads that I shoot are very, very close from lot to lot and don't seem to be very temperature sensitive. That ammo is made by Norma. I haven't tried any of it for my hand loads as I get very good results with IMR 7828. The IMR is fairly temperature sensitive however.
Ken....
"The trouble with our liberal friends is not that they are ignorant, but that they know so much that isn't so. " - Ronald Reagan
20 June 2009, 00:21
Tyler KempI think I will try MRP-2 in my next 6mm Ackley barrel and 338 Lapua whenever it's done.
Love shooting precision and long range. Big bores too!
Recent college grad, started a company called MK Machining where I'm developing a bullpup rifle chassis system.
20 June 2009, 03:28
Big Bore Boar HunterNot quite the same, but pretty close to RL22, which is not a bad thing, RL22 is my favorite magnum powder from 270 to 300 Win to 338 win to 340 Wby, I've gotten good accuracy, high velocity, and no pressure signs.
Jl
20 June 2009, 03:42
steve4102I have both Norma MRP and Reloader 22. I have 5 one pound cans of MRP with 3 different lot numbers. These all load grain for grain with each other. I also have two one pounders of R-22 with different lot numbers. Both of these shoot grain for grain with each other, but not with the MRP.
My lots of MRP out perform my R-22 in both velocity, accuracy. R-22 just can't keep up to MRP in the velocity and accuracy dept. If indeed they are the same powder, I don't see it.
20 June 2009, 08:55
Tyler KempWell I certainly am going to try MRP-2 now!
Love shooting precision and long range. Big bores too!
Recent college grad, started a company called MK Machining where I'm developing a bullpup rifle chassis system.
20 June 2009, 18:22
tiggertatequote:
Originally posted by steve4102:
I have both Norma MRP and Reloader 22. I have 5 one pound cans of MRP with 3 different lot numbers. These all load grain for grain with each other. I also have two one pounders of R-22 with different lot numbers. Both of these shoot grain for grain with each other, but not with the MRP.
My lots of MRP out perform my R-22 in both velocity, accuracy. R-22 just can't keep up to MRP in the velocity and accuracy dept. If indeed they are the same powder, I don't see it.
The lots of MRP that don't meet spec must go in the R-22 barrel
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