IMHO you’re hoping that your most precise accuracy node is at your maximum pressure point. This may ore may not happen with your rifle system. There are times when we have to decide what our objective is, either precision or velocity. That’s your choice. In reality, that extra FPS may not be...
I believe the old textbook O’Connor load was 59-60 grs of H4831 behind a 130 gr bullet. I had a pre-64 Model 70 Standard rifle [4 screw] that did very well with that load.
Ammo manufacturers aren't selling brass. They are selling loaded ammo. Look at Lapua, Peterson, Alpha, and Norma for better brass. Rumor has it that Nosler is Norma brass.
The short answer is that your load is at the pressure limit for that manufacturer and lot of brass. Is it reloaded factory ammo or new brass? I don't know who makes brass for this caliber. This short brass life is just a reality that you have to work with. In my experience, Hornady is another...
I currently have both 280AI and a 284 Win. The 280 AI is an H-S Precision Series 2000 SPL and the 284 is an F-Open 21# Match rifle. When I was young and dumb, I had a 284 Win Model 88 that I found in a hardware store in Upstate NY. Not realizing what the 284 would become and not liking the Model...
I’ve had a FX-120i for two years. Responds to a single grain of Varget, 4831SC and does not drift. Settles rapidly while trickling. Put a good power conditioner/ surge protector on it.
Had a Gempro 250 until it croaked. Grizzly had a $40 electronic scale That stood head and shoulders above the...
I have a Leupold VX3 1.5x5 with the Heavy Duplex. I prefer the standard duplex and would be willing to part with this one. I had it on a Ruger No 1S 45-70.
Why don't you handle them both, together if possible, and see which on feels better in your hand. Try the triggers, cycle the bolts, and operate the safeties? Which one is best for your style of hunting?
I like Skinner Sights on lever guns. I have to ask, the picture in your initial post shows that the rifle is factory drilled and tapped for receiver sights. Why not look for a receiver mounted Lyman 48 or Williams 5D instead of drilling and taping for the Skinner?