trubulator Wrote:Shooters Pro has blems in stock, so I ordered some. I'd like to gin up a hunting load for my 16" barrel upper. I have TAC, 335, Varget, a little H4895 and 2520 on hand. I have a pound of CFE 223 but would rather use something more temp stable as my hunting can be at 20 or 80 degrees. Which powder of these would you try? Ranges can be on the long side, so velocity and accuracy matter too.
I get this is probably not what you want to hear but, temperature stability for hunting rounds, inside of 400, maybe 500 yards is way overblown and frankly not really an issue! IMO
Temp stability (+/- FPS and vertical displacement) is only an issue out past like 600+! Look dont take my word for it, do your own research, crunch the numbers! I think youll find, inside of at least 400 yds, there other things that are more important. FWIW, all of the factory Hornady Grendel ammo Ive ever torn apart, is filled with a double based spherical temperature unstable powder! A little common sense goes a long way! Dont do max performance load development in sub freezing temps and then take that load to AZ or TX for a summer hog hunt! Right? I would wager most people hunt in 20-80f degree weather range and that doesn't seem to be a problem with Hornady factory ammo and their use of spherical powder! IMO
Every gun/chamber is different but for that weight class of bullet, 129-130, CFE223/Lever is going to be hard to beat. I prefer Lever, at least in bolt guns. Burns cleaner and seems more consistent!