Brent
Well-Known Member
Garrum,
As I've understood it the only difference between the powder was the SC (short cut)version was made shorter for more consistant metering and that was it.
The A-Max and Scirocco and Barnes "X" did the same thing in my .308 Win. but the Matchking and Gameking and Palma were all super tight.
I,ve done enough testing with bullets that I always start with a Sierra bullet, find a good load then switch to another sometimes only afterward. The Sierras are kind of a constant in the equation of accuracy I find.
Have you ever switched scopes and checked the mounts to see if it's the culprit? My brothers Burris was once in the same situation.
How about firing one shot at each .2gr increment from starting load to max load in your rifle while plotting on paper ( the target itself is best before things get too mixed up )the placement of each hit with each load fired.
You will quickly find the sweet spot where all of the hits group tightly. The range where they are being wipped out of the group with dwell time in the barrel being shortest and most inconsistant should also be quite apparent.
This tight range is where five to ten round groups should be evaluated in .2gr to .5gr increments.
Good luck.
As I've understood it the only difference between the powder was the SC (short cut)version was made shorter for more consistant metering and that was it.
The A-Max and Scirocco and Barnes "X" did the same thing in my .308 Win. but the Matchking and Gameking and Palma were all super tight.
I,ve done enough testing with bullets that I always start with a Sierra bullet, find a good load then switch to another sometimes only afterward. The Sierras are kind of a constant in the equation of accuracy I find.
Have you ever switched scopes and checked the mounts to see if it's the culprit? My brothers Burris was once in the same situation.
How about firing one shot at each .2gr increment from starting load to max load in your rifle while plotting on paper ( the target itself is best before things get too mixed up )the placement of each hit with each load fired.
You will quickly find the sweet spot where all of the hits group tightly. The range where they are being wipped out of the group with dwell time in the barrel being shortest and most inconsistant should also be quite apparent.
This tight range is where five to ten round groups should be evaluated in .2gr to .5gr increments.
Good luck.