44man
08-06-2007, 01:04 PM
I loaded a few today for my BFR with my new Lyman neck die and shot them at 50 yd's. I had good neck tension on four of them and one a little looser when seating. I marked that one and shot it last.
I thought you would be interested in what happens with the wrong sandbag under the butt. I blew my good bag wide open last month from muzzle blast and didn't make a new one yet. The one I have left is hard to get even tension on.
If you look at the vertical dispersion you can see what happens when the butt sinks the bag different for each shot.
Torque also comes into effect when the gun rises different which makes the string lean a little. The right hole is from the looser neck tension.
If I get a good bag made and get the butt under control, measure the seating pressure, I think I can get closer to one hole.
Yes, I have tried resting the frame, only the barrel and wrists and all the other ways listed but nothing shoots as good as the end of the barrel and the butt on bags. Creedmore does as good but it is harder to hold steady.
I used my 317 gr gas checked boolit and Felix lube. Velocity is 1633 fps.
I have more work to do.
I thought you would be interested in what happens with the wrong sandbag under the butt. I blew my good bag wide open last month from muzzle blast and didn't make a new one yet. The one I have left is hard to get even tension on.
If you look at the vertical dispersion you can see what happens when the butt sinks the bag different for each shot.
Torque also comes into effect when the gun rises different which makes the string lean a little. The right hole is from the looser neck tension.
If I get a good bag made and get the butt under control, measure the seating pressure, I think I can get closer to one hole.
Yes, I have tried resting the frame, only the barrel and wrists and all the other ways listed but nothing shoots as good as the end of the barrel and the butt on bags. Creedmore does as good but it is harder to hold steady.
I used my 317 gr gas checked boolit and Felix lube. Velocity is 1633 fps.
I have more work to do.