Anyone have a good starting charge for 160 CX's in a 7 SAUM, with H1000, H4831SC, Magpro, STAB HD, Retumbo or any other appropriate powder (not R26 as I have never seen it). H1000 tends to be good to me. I have a Hawkins Hunter mag with extended COL, so I will be pushing around 2.95 COL. 24" CarbonSix barrel on a REM 700 SA I recently trued up. Thanks in advance.
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7 SAUM & 160 CX
- Thread starter 7mm man
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New Member
Hello, I have been trying to find out the same information. Were you able to find out anything? I was slightly concerned with case capacity. I was hoping to use H1000.
So the most accurate load I got was at 61.0gr of H1000, COL of 2.94". Velocity at 2870 FPS and SD's at around 8 FPS. Brass is ADG. Groups around 0.75". I have yet to try any other powders as it was pretty good to me. I did go up to 62.0gr with no pressure signs. It was starting to compress the powder though.
Do you have Hornady's data.?
I can send it if not
I just looked, they list 6 bullets in that weight class but not the CX.?
john k
Well-Known Member
Might want to check with Longtine88 even though he gravitates to the heavies. I shoot 160AB's and 143HH's in my 7SAUM but it's an old school Model 7 with a slower twist which is fine with me as I am a SouthEastern USA whitetail hunter. Retumbo too slow. I use RL23 and RL26 but H4831sc is a good option. Sacrifice a little fps but accuracy should be good. I have no experience with CX but shoot HH's in a mono.
Question on 7saum.
Hodgon load data shows 63-67 gr for h1000 using 160gr NP. Anybody try this. Seems a lot. I'm thinking starting lower and working up.
Thoughts on this load data.
My COL will be longer than sammi. My freebore is .220
Thanks
Hodgon load data shows 63-67 gr for h1000 using 160gr NP. Anybody try this. Seems a lot. I'm thinking starting lower and working up.
Thoughts on this load data.
My COL will be longer than sammi. My freebore is .220
Thanks
Jakeweb09
Well-Known Member
You'll find things along the lines of rl23, 4831sc, or h4350 will probably be a better option with 160 weight class bullets. I run 23 with 180, little slow but unbelievable accuracy
Shortmagman
Well-Known Member
I have not shot 160CX's out of my 7mm SAUM but I have shot 160 Barnes TTSX using RL-22. I have loaded RL-19 &22, H1000 and IMR-7828. All have shot well with bullets from 140 grains up to 180 grain Bergers. By far the most accurate loads that I have developed all used IMR-7828. This powder and 168 grain Berger match have shot one hole groups. My load with the 168 grain bullets is 59.6 grains of IMR-7828. This is not a max load. If I were to load 160CX I would start at 55 grains of IMR-7828 and work up.
