I probably shoot loads that are too hot, but the accuracy is there and SD is very low, brass does not last very long in some of these loads, 7 RM is what I am speaking of in Rem brass with R#25 with Win Mag primers, 150's at 3200-3250 depending on the barrel, 150g Nosler and 154g Hornady all shoot bug holes. When the powder charge is lowered, accuracy goes to heck with the only powder charge that shoots 1/3" and less accuracy is one that is on the very top end of the pressure curve.
There is another load with 140s in the 7 Rem Mag with 140s doing darn near 3300 with R#19 in win brass with Fed 215s that is very, very warm, and another with IMR 4350 at 3250 that will shoot tiny bug holes with 140g ballistic tips.
Orkan, I am going to watch all of your videos, I am sure that I can learn a lot, and I appreciate your putting the time and effort into teaching with the videos.
I know that there are huge differences in the strength of actions, bolt heads in particular.
I like to use cartridges where I can keep 500 pieces of new brass on hand, or make a wild cat from decent parent cases that are plentiful.