Home Forums Reloading Big Game Rifles Replacement powder for RL22

I use Rem 9 1/2 mags for the 7mag, so it shouldn't be a problem.

Thanks for all the info.
I started reloading for the 7Mag with IMR4831 and 150gr bullets (good accuracy with 61grs), then I found RL22 and based on reading a lot about it as a good powder for the 7mmRM I tried it and got good speed, but having only chronoed loads twice it seemed like I had a fast lot or RL22, or a fast barrel.
With my current 1lb can, I get 3000fps with 64gr of RL22 and 160gr partitions, so it is fast for book, but no pressure. Everyone else that uses a similar combo seems to need 66gr or more to break 3k.
Chrono misbehaving is unlikely as it was different days and different chronos. Maybe I do have a fast barrel?

Without being able to find RL22 and if lot to lot variation is common with RL22 I was wondering if it was worth loading up what ever I have left with hunting bullets and exploring other options from what is available.
my concern was that if ordering online will require Hazmat, just get a jug and hopefully be done.
gunbot shows MRP at Widener's, but not available when you go to their website.

My 7RM does very will with RL-25 and 160/162 gr. bullets. So, if you find a bottle of RL-25, grab it. Accuracy was actually better with RL-25 than RL-22.

I've seen some Ramshot powers out and about. Get a can of Magnum if you see it. It does good, too.

DF

My 7mags love R22 as well, but I found some accurate 160g AB/Partition loads with Retumbo @ 3100.

I have been looking for RL-22 for about 2 years now and had only found 2# locally. But just last week one of the local stores had it in stock and I now own 13# of it. My 338Rum eats 94 gr per load and my 7Rm eats it as well. Finally happy, now if I could just find some power pistol

JG,

What was the 160 gr. NAB load you took to Africa?

DF

If you ever get up to Dallas, SW Shooters Supply in Mesquite had lots of MRP when I was there the other day. MRP=R22; same powder, same manufacturer.

Call first; inventory changes daily, even hourly.

I've used many of the powders mentioned for the 7RM, my two favorites are IMR7828 and R22 if using 150-160gr bullets. For lighter bullets H4831 is very good. With 66grs of IMR7828 and 160gr.NPT my 26" Hart barreled Mod.70 gets 3050fps or so and accuracy is outstanding.

This make me think someone needs to make a list of all "twin" powders. Maybe it's been done already.

I didn't know MRP=RL22. I know H414=w760 and I'm sure there's others.

Norma 204 = RL-19
Norma 203B = RL-15

Add MRP2/now 217 = RL25

I didn't really intend to hijack this discussion. I'm going to start a new one and then compile the list in Google Docs to share publicly with everyone. Here's the new thread:

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/9014740#Post9014740

Retumbo is also an excellent 7 Rem Mag powder with bullets in the 160gr range.

Wouldn't bother me not to use R22 in 7 Mag because it is reputed to be quite temperature sensitive.

H4831 is one item which is always on the shelves of our local gun shop.

I much prefer H4831 to RL22 in the cartridges where I might use either. I find RL22 to give less uniform results over varying conditions.

My 7mm Mag Likes RL22 also. Ordered Norma MRP as A replace-
ment, it works real well in the 7mm. Later I also found That
Retumbo gave as good or better accuracy so switched to it
for 160gr Accubonds. Magpro and H1000 worked well also. I use
a lot of MRP as it works in my 270 Winchester and my 257 Roberts.
Same as the RL22 did.

MRP

I've read that not only is MRP the same as RL-22, it's made to more stringent standards at the same plant with less lot to lot variation. Not sure if that's true; I like both.

DF

http://www.butchsreloading.com/shop...liant-rifle-powder-reloder-22-1lbs-.html



Just order it! The Walmarts in some towns here almost always carry it.

Our local Wally Worlds aren't a good source of powder.

Thanks for that link. If someone needs RL-22, they need to jump. It seems most of their other powders are "not available".

Powder Valley sometimes has a few cans of powder available. Most of their stuff is "not available".

DF


Edited to add, Powder Valley has 8# jugs of IMR 4064, 4227 and 7828. Everything else is "not available".

69 grains of IMR 7828ssc under a 139-grain Hornady Interlock clocked 3285fps from my 26-inch Criterion/Savage. .441 inches at 100 yards. 68.5 slowed to 3244 and .5 inches.

75 grains of Reloder 33 under 175 Hornady Interlocks clocked 3028 from my 26-inch sps.

75 grains of Reloder 33 under a 160 Partition clocked 3132 fps and .5 accuracy.

These were measured with a Pro Chrono.

Reloder 33 really wakes the 7 mag up.

Thanks, SB.

I have 160 NPT's and RL-33.

So, I'll check it out.

DF