Powder for 7mm mag

Brad NSW

Member
Joined
Jul 26, 2016
Messages
39
I finally found my hunting load for non-lead in California. 150gn Barnes Copper TTSX bullet with IMR 4831, 0.010 off the Lands. 2" 4 shot group at 300yds with the fifth being a flier (my fault) 4" left. Remington Model 700CDL with Nikon 3x9 scope. Pretty tame load giving me 2990fps. Took 4 trips to the range. So happy, I just got 8lbs of IMR 4831. Works about the same as IMR4350 in my 8mm Mauser too, but couldn't get my 7mm to like the 4350.
 

std7mag

Well-known member
Joined
Aug 23, 2016
Messages
899
Location
central pa
Try going further off the lands.
Barnes recommends 0.050" off the lands. Per their reloading manual.
Though not too shabby!
I had to re-read your post. Was thinking 2" at 100...

And i still have plenty of RL26 available here in PA.
8133 i have not seen yet. Guessing close to RL33. There was data at one time for 7mm Rem Mag and 175gr bullets with RL33.
 

7 mag

Member
Joined
Dec 1, 2019
Messages
95
Location
Wyoming
7mm wby mag
Hogden Hv100
Federal 155 tlr
26 inch Barstien bbl 5r 1.8 twist( custom throat)
Vel 3220
 

sbhooper

Well-known member
Joined
Jul 7, 2012
Messages
3,719
Location
North Platte, Nebraska
Try going further off the lands.
Barnes recommends 0.050" off the lands. Per their reloading manual.
Though not too shabby!
I had to re-read your post. Was thinking 2" at 100...

And i still have plenty of RL26 available here in PA.
8133 i have not seen yet. Guessing close to RL33. There was data at one time for 7mm Rem Mag and 175gr bullets with RL33.
I don't know why that data disappeared. I can get over 3000 fps with 175s, using Reloder 33 in a 26-inch barrel. Great accuracy, too.
 
Top