Home Forums Reloading Big Game Rifles Replacement powder for RL22

I have a hunting accurate load with RL 22 for a 7mm RM, but have been unable to restock. I can get an 8 pound jug of IMR7828, plain flavor, but have never tried it before.
I don't mind working up a load, but wondering if it will also work on a 243win with 90-100gr bullets, or should I attempt to locate other powders. By the burn rates seems like MRP and VV560 should be good too

I run three kinds in mine. RL22, Magpro, and H870/US869 (for the heavies). RL22 and Magpro give top velocities vs. other powders I've tested in all weights except the 175's. Where a compressed case full of H870/US869 has a slight edge. I really miss H450, that was a great powder no longer being made.

In my limited use, 7828 would be plenty good for my needs..

but I do admit, I'd love to come across an 8lb'er of H 1000.. at a cheap price since I am busy wishing here...might as well shoot the works...

plus I prefer RL 19 over RL 22...

had one of those bad recalled batches of RL 22, but I had used it all up before the recall... with some not so good results...

A lot of RL 22 is showing up lately but is usually gone quick. But to answer your question, MRP is your huckleberry. Same same as RL22

RL-22 can be found...it's my absolute favorite "magnum" rifle powder of all time. My 300RUM loves it as does my 300 Win Mag. Can you find Norma MRP? I have heard, and seen in print, that it's the same stuff...not anecdotal internet chatter, but respected outdoor writers, etc.

I'd shop around for some 22...you can find it.

It can be found easier than RL22. Gunbot.net is your friend. Norma MRP and RL22 are made in the same plant. Its really a very good powder.

I had great luck with 7828 in a 300Wby and it does work with the 243 with heavier bullets. I wouldn't shy away from it.

7828 was the powder used by the factories in the original 7 Rem Mag loadings. It was not offered as a cannister powder for hand loaders for a few years after the 7 Rem Mag was introduced.

It will work fine in the 7 Rem Mag.

Bob nailed it. 7828 is great for the Rem mag plus the STW 7-300 WBY Magnum ect.

Magpro.

Tough for me to agree with schitty52 since he is wrong 95% of the time but he is correct on this.....IMR7828 does not always work as a replacement for RL22 and VVN560 is a poor substitute. for me VVN165 has always come close to the burn rate

H4831 is closer. (Good luck finding that!)

I would say H4831 as well, but velocity will be slower.

Agazain- I know a few places that have it in stock. If interested send me a pm.

H4831 has been showing up in stores here more lately...you may find some.

7828 is a fantastic powder for the 7 Mag, use 215 primers.

+1

MRP seems easier to find right now than RL-22. I recently got 8#'s of MRP and 8#'s of Ramshot Magnum.

But, you gotta grab it when you find it.

DF

The name of the game nowadays is finding something close, that will work. Sometimes it's not quite ideal, but if it can be made to work sufficiently well, it may have to do until things loosen up a bit (if they ever do).

I have used Magpro in my 270 WSM, but more of that powder is impossible to find near where I live. I have a good supply of RL22, which also works well in the WSM, as well in my .257 and .300 Wbys.
I've had to substitute H414 for Big Game in my .375 Ruger, H100V for Big Game in my .257 Roberts, etc. etc. At least, the experimentation with different powders gives some flexibility if/when different powders come available.

Yeah, in this current market one needs a good powder burn rate chart to see what powders are in the ballpark. And, as I said before, when you do find powder, grab it. I even pay haz-mat on just one jug of powder. I never did that before, always getting enough powder to prorate that expense. Now, it's all about availability, haz-mat doesn't seem to be as big an issue...

DF

As mentioned, MRP if you want to replicate 22. That said, 7828 is a good powder in the 7RM for sure and usually produces a bit more speed. 7828 is a bit slower burn, so it takes a touch more. IE I usually end up at around 66g of 22 when pushing 150s, with 7828, I'll be around 67 to achieve the same.

H4831 is a good powder in the cart, but it yields slower MVs with 150+ pills as it is a bit faster. I prefer to use it with 120-140 pills.

Hodgdon seems to be running behind Norma at present, getting powder to dealers shelves. For a while, I couldn't find Norma powder anywhere. Go figure.

So, I use what I can find. Fortunately, I tend to stockpile .22LR ammo and powder. Not hoarding, just stockpiling. So, I generally have what I need. I buy before I need it, if possible.

DF