quartermaster
Member
I am going to have a 6mm BR made. It will be for shooting paper and varmints for now, but I would like to have the option for shooting some mild competition at some point. It would not be serious, but more or less just to see what it and I might be able to do.
I could use some advise from anyone knowable about this caliber,such as a benchrest shooter, gunsmith, or manufacturer. I would like the option of shooting 70-105 grain bullets and not sure what twist rate I should get. Does anyone believe that a bullet can be overstabilized? Should I get a 10" twist? Will I loose a bit of accuracy with a 70 gr head or lighter if I select that option? I am assuming that a bullet in the 70-80 grain range could shoot in a 600 yard competition, but you might need a 105 or so to go 1000 yards. I probably would never do that anyway, but I suppose there is always that possibility.
Shilen posts that a 12" twist is good up to 85 grains. I am sure that they build a safety factor in their recommendations. I suppose with that, I could go down to a 60 gr bullet if I wanted to do so.
I'm babbling on not knowing really what I'm talking about. I guess if I did, I wouldn't have started this thread. Maybe I am asking for too much with that spread in bullet weights and lengths.
I would greatly appreciate some advice based on experience and all will be weighed very seriously. It will be a sizable investment and I would like to get it right with no regrets later on.
Thanks in advance
I could use some advise from anyone knowable about this caliber,such as a benchrest shooter, gunsmith, or manufacturer. I would like the option of shooting 70-105 grain bullets and not sure what twist rate I should get. Does anyone believe that a bullet can be overstabilized? Should I get a 10" twist? Will I loose a bit of accuracy with a 70 gr head or lighter if I select that option? I am assuming that a bullet in the 70-80 grain range could shoot in a 600 yard competition, but you might need a 105 or so to go 1000 yards. I probably would never do that anyway, but I suppose there is always that possibility.
Shilen posts that a 12" twist is good up to 85 grains. I am sure that they build a safety factor in their recommendations. I suppose with that, I could go down to a 60 gr bullet if I wanted to do so.
I'm babbling on not knowing really what I'm talking about. I guess if I did, I wouldn't have started this thread. Maybe I am asking for too much with that spread in bullet weights and lengths.
I would greatly appreciate some advice based on experience and all will be weighed very seriously. It will be a sizable investment and I would like to get it right with no regrets later on.
Thanks in advance