Thanks veteran!!!!
7mm mag powder choice
- Thread starter kaseyfied
- Start date
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7mm Rem Mag, I'd think whichever you have that is the closest to IMR4350 and H4350 performance would work just fine... My experience has been that the 4350 powders always performed well when I was shooting a 7 Rem, Mag... old school? sure, but it worked. 
Vann Kirkland
Well-Known Member
Good luck on finding the powderAlright... wanna know what people are thinking for a TI build i just finished. Going to do load work. I have the following powders. I want to load 175 bergers and 180 bergers
H1000
8133
N565
N568- really hoping someone has loaded some
N570
Im got it throated long also.. 3.580
Kasey
Shane Lindsey
Well-Known Member
- Joined
- Jul 13, 2010
- Messages
- 3,335
N570 with 190 LRHT throated long is getting me 2950 ish. Load development continues.
Lol.. i think ill be fine
H1000 is definitely my go-to for 7mag, 8133 was a hair more accurate in my gun and gave amazing velocity well over 3100fps with a 162 but it's a hot double base (so is the Vhit 500 series) and I lost .012" out of my throat in 250rounds. Good luck!Alright... wanna know what people are thinking for a TI build i just finished. Going to do load work. I have the following powders. I want to load 175 bergers and 180 bergers
H1000
8133
N565
N568- really hoping someone has loaded some
N570
Im got it throated long also.. 3.580
Kasey
Yeah for a hunting gun it's not bad the only strange thing is inverse velocity relation to temp. It will speed up a little as it gets colder so be prepared for thatI like me a good throat killer anyways
7mmTikkaShooter
Well-Known Member
I've had some great results with 8133 and 175's. Also used Retumbo, 7977, and RL 22 but 8133 is still my favorite. Originally got it to find another option to Retumbo and discovered a few more FPS, and I think it burns just a touch cleaner IMO. Best accuracy with everything was sub 1/2 MOA. 8133 was fastest and also offered the largest velocity node.Alright... wanna know what people are thinking for a TI build i just finished. Going to do load work. I have the following powders. I want to load 175 bergers and 180 bergers
H1000
8133
N565
N568- really hoping someone has loaded some
N570
Im got it throated long also.. 3.580
Kasey
Not apple to apples, but I tried 568 in a 300 Win with 230 OTM's. Velocity was similar to H1000 but it took a few more grains of powder to get the same velocity. I was into pretty compressed loads by the end.
I'm going to revisit it more. It had the most consistent point of impact over 7 or 8 grains of charge weight difference I've ever experienced.
- 15 shots fired
- .5gr increases in charge weight between shots
- 15 shot group measured at 1.37"
Zero seating depth testing. I was just looking for max pressure. I never found it.
For some reason, I don't think everyone finds that impressive but I usually have groups open when I'm doing pressure testing.
