Powder for 175 gr Sierra Gameking 7mm mag

[std7mag]

From what i've heard, the 100 class of their powders are the single base, while the 500s are double base.
More energy from the 500s giving more velocity.
But...
The 100s give better barrel life. They aren't as hard on the throat area.

Speeds for the N170 are still respectable with the 175gr bullet. I'd definitely put it in the "to try" list.

 

[morgaj1]

I find RL22 to be magic for accuracy in magnums and .270. However, it is too temperature sensitive to me. I have been using RL23 instead and have been pleased.

 

[Bad Toad]

I did a search and didn't find anything specific to this question. I recently inherited my FIL's Savage 110 SS in 7mm mag. He also gifted me his dies, some cases, and about 200 175 gr Sierra Gamekings for it. I have used Gamekings in my .30-06, .223, and 7mm-08 and they shoot great in all of them.
This will be my first time reloading for this caliber, and am looking for advice on powders that others have been successful with. Currently, I have Varget, W760, and H4895 on hand in powders. Knowing the current market and powder availability, would any of these be reasonable to start with? I know that a slower burning powder will likely be what I am looking for, but I'm unsure if any of these might be viable or if I need to start looking for some other powders.

Thanks in advance for any suggestions.

If you have not tried Ramshot Magnum with your 7mm rem mag I suggest you do. It was literally made for cartridges like 7mm mag, .300 win mag and 338 lapua. It is a double spherical powder and it measures out very accurately. I like the Terminal Ascent, Partition, TTSX and ALCO bullets. If you are into BC the Alco’s have crazy high BC.

 

[jbseamus83]

If you have not tried Ramshot Magnum with your 7mm rem mag I suggest you do. It was literally made for cartridges like 7mm mag, .300 win mag and 338 lapua. It is a double spherical powder and it measures out very accurately. I like the Terminal Ascent, Partition, TTSX and ALCO bullets. If you are into BC the Alco’s have crazy high BC.

Thanks. I actually got some. I have yet to load up new loads with it, but I just got a 7mm PRC as well and will be loading for it within the next few weeks, so I will be trying out the magnum for both.

 

[antelopedundee]

I did a search and didn't find anything specific to this question. I recently inherited my FIL's Savage 110 SS in 7mm mag. He also gifted me his dies, some cases, and about 200 175 gr Sierra Gamekings for it. I have used Gamekings in my .30-06, .223, and 7mm-08 and they shoot great in all of them.
This will be my first time reloading for this caliber, and am looking for advice on powders that others have been successful with. Currently, I have Varget, W760, and H4895 on hand in powders. Knowing the current market and powder availability, would any of these be reasonable to start with? I know that a slower burning powder will likely be what I am looking for, but I'm unsure if any of these might be viable or if I need to start looking for some other powders.

Thanks in advance for any suggestions.

From the Sierra website under resources. I assume that your bullet is #1940?

https://sierrabullets.com/content/load-data/rifle/284/7mm-remington-magnum.pdf

I'd be inclined to try the ones easiest to obtain and you can always sell it off if it doesn't work for you.

 

[jbseamus83]

From the Sierra website under resources. I assume that your bullet is #1940?

https://sierrabullets.com/content/load-data/rifle/284/7mm-remington-magnum.pdf

I'd be inclined to try the ones easiest to obtain and you can always sell it off if it doesn't work for you.

Yep. Thanks. This thread was literally 4 years old and revived last week. I've found some great loads with some powders that work really well. 4 years ago there were waaaay less powders available than what can be found now.