Powder for 7mm mag

Fullquiver

Member
Joined
Jul 18, 2018
Messages
70
I bought a hundred 140gr Nosler AB's.. I won't be able to put together my loads but my son's can for me(I'm having surgery)... They are very busy so I am looking to shorten the process for them.. What powders have you guys had the best results. I am looking for best accuracy and decent speed. Not barn burning speed necessarily.. Rifle is a Ruger M77 if that helps..
 

sbhooper

Well-known member
Joined
Jul 7, 2012
Messages
3,708
Location
North Platte, Nebraska
I have always liked Reloder 22 and IMR 7828 for the 140-grain bullets. I like Reloder 25 and 33 for the 160 Partitions. The 7mag likes lots of different stuff, making it simple to load for.
 

Don Fischer

Active member
Joined
Jun 27, 2017
Messages
836
Boy was my 7mm mag a long time ago. Had great result's with 160gr Speer Hot Core and N-205.
 

Addicting

Well-known member
Joined
Jan 19, 2017
Messages
2,878
Location
SW Michigan
I’ve used both RL 22 and 26. RL26 is like magic fairy dust, it works great, but good luck finding any. I’m shooting Barnes TTSX 150g and RL26 and getting 3150 out of a 26” barrel.
 

sbhooper

Well-known member
Joined
Jul 7, 2012
Messages
3,708
Location
North Platte, Nebraska
I’ve used both RL 22 and 26. RL26 is like magic fairy dust, it works great, but good luck finding any. I’m shooting Barnes TTSX 150g and RL26 and getting 3150 out of a 26” barrel.
Reloder 26 is even harder to find than 25. I bought a big jug of it, before it got so popular. I use it in my Creed, with Hornady 147s.
 

Addicting

Well-known member
Joined
Jan 19, 2017
Messages
2,878
Location
SW Michigan
Reloder 26 is even harder to find than 25. I bought a big jug of it, before it got so popular. I use it in my Creed, with Hornady 147s.

I did too, I didn’t think I would ever need 8lbs but sure am glad I have it now. That load I worked up is like a laser beam death ray accurate. Shot a 1.5” group at 400 today.
 

magnum12

New member
Joined
Jun 9, 2017
Messages
16
I have had good luck with Retumbo and RL25 with Accubonds and partitions and RL22 and H4831 with Barnes and Speer.

You guys have peaked my interest with RL26, going to have to try and find some.
 

std7mag

Well-known member
Joined
Aug 23, 2016
Messages
895
Location
central pa
With 140's i use RL19, IMR4831, Norma MRP.
RL19, RL22, RL23 for 150gr.
RL26 for everything heavier.
RL25 was fast, but accuracy not anywhere near as good as RL26.
 

sbhooper

Well-known member
Joined
Jul 7, 2012
Messages
3,708
Location
North Platte, Nebraska
I have had good luck with Retumbo and RL25 with Accubonds and partitions and RL22 and H4831 with Barnes and Speer.

You guys have peaked my interest with RL26, going to have to try and find some.
Good luck with your search. It is virtually impossible to find. Great powder in several loads, but really shines in the Creed. THAT is why it is gone.
 

sn.outdoors

Active member
Joined
Sep 27, 2016
Messages
412
Location
WI, WA, NM, ID
RL23 is the best I've seen with 140gr bullets.

IMR 7977 is very good with 160-168gr bullets in all of the rifles I've loaded for. It's my go-to powder if others aren't showing promise. The only downside of 7977 is lower velocity compared to RL26 and retumbo. H1000 is also great for this class of bullets.

I like RL26 and IMR8133 with 180vld's. Both powders send the 180's at 3000+ out of 26" barrels. I've been using the RL26 load for 2 years now with great results, and only recently started tinkering with 8133 due to the shortage of RL26. So far (only 50rds tested) 8133 has been just as consistent and accurate but a little dirtier. Velocity difference between the 2 powders is negligible.
 

Millsworks

Active member
Joined
Feb 6, 2017
Messages
717
With 140s I have had best speed and accuracy with R-22 and R-23.
But I normally load 162gr bullets with the same powders and it works equally well.
 
Top