I am looking forward to you getting spoiled using a joystick rest.
When I started using one around 18 years ago, my first comment to someone or myself was, "It feels like I am cheating."
This is just statistics, but I think it was last year for F-Class Nationals and the South West Nationals...
Just use regular powders for long barrels.
I don't always use The Slowest Powder, but sometimes I will use one just a tad faster then the slowest.
Example: 15-18" 6.5-284 I typically use H-4350, but I have also used H-4831sc
A review by me would be self-serving and biased, simply because I am the US Dealer for SEB Rests.
My website: NEO-X, MINI-X, MINI, Trident, AR250, and the JOYPOD-X (It is a comp bi-pod).
https://sebrests-usa.com/
Seb's The one who actually makes them website:
https://sebrests.com/...
Here is what I use the majority of the time...
I can shoot very tight groups with various bi-pods and various rear bags from the bench.
Here is what I use for comp load development.
Custom actions with high end barrels that are heavy (mine are stiffer as well for the contour chosen, because they are short), puts a lot of things in my favor.
Our thoughts exactly.
Plus, it was windy when Glenn did the 4 different groups.
We don't even have 50 rounds through the barrel yet, and I have more brass that needs to be fired for the first time.
The 6GT is rocking it!
PROOF 7.5T, 15.9” barrel, Holland brake, McMillan stock, Borden Alpine XP, Dell trigger. Omega Precision/Peter Angelos did the rebarrel.
Groups at 100 yards.
Glenn had some time and this is a 10-shot group, and every shot was a different powder charge 3/10’s of grain...
Over simplified, but a general rule for fast twist/long-range set-ups.
Zero at 100 yards at 1/4" left of center, and that pretty much takes care of you out to a grand.
An accurate app (As Mentioned) will be the most accurate.