08-31-2023, 11:52 PM
Ar Comp works well for the 120 class bullets. It does have some temperature stability so if I were you, I'd pick up some of it. get 3# or so of the same lot# (or more if you want- lol!). The 123 sst, 123 eldm, and nosler 120 all fall into very similar load weights and MVs. Lot to lot you will see some load changes necessary to get your node dialed back in, so get multi-pounds of the same lot#.
Since Op say he's a 1-bullet shooter, this is a reasonable combo for him.
I can't say that temperature stability is a big or not-so-big deal, from my shooting. I don't plan to be shooting below about 30 degF, but when I did some range time and the temps were >90 degF this summer, I was getting some faster MVs... so I guess for me, it can happen for sure, even with vargets and h4350's... noticeable but not deal breakers, but the ball powders, a bigger spread.
If you want to try some CFE, which is also a good powder for the 120 class, I'd make sure you're not going out with it in 90 DegF or greater. Below that down to about 30, out to 200 yds you might not see much delta. But I'm still in process of verifying how true/false that is for myself. I don't plan on using the grendel past about 200 anyway.
Since Op say he's a 1-bullet shooter, this is a reasonable combo for him.
I can't say that temperature stability is a big or not-so-big deal, from my shooting. I don't plan to be shooting below about 30 degF, but when I did some range time and the temps were >90 degF this summer, I was getting some faster MVs... so I guess for me, it can happen for sure, even with vargets and h4350's... noticeable but not deal breakers, but the ball powders, a bigger spread.
If you want to try some CFE, which is also a good powder for the 120 class, I'd make sure you're not going out with it in 90 DegF or greater. Below that down to about 30, out to 200 yds you might not see much delta. But I'm still in process of verifying how true/false that is for myself. I don't plan on using the grendel past about 200 anyway.
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