Joined
·
27 Posts
I am relatively inexperienced caster but I finally got satisfactory results in .308, .30-06 and .375 H&H. I also wanted to develop a load for my 6.5x55 SM.
The mould I selected was Lyman 2660673 gas check. Sized to .264. It is so called silhouette bullet and expected it to be accurate. I tried three loads with powder available to me here Sweden. I measured the velocities with my chronograph and results are following: 1925 f/s, 2106 f/s and 2253 f/s.
In all these velocities my bullets tumble.
I suspect bullet shape which is a bit weird. It is rather long, has only 3 driving bands and bearing part of the bullet is quite short. It seems that my rifle has a problem in stabilizing this bullet.
Is there a cure for this or I need another mould which would drop a bullet with more driving bands?
Roman
The mould I selected was Lyman 2660673 gas check. Sized to .264. It is so called silhouette bullet and expected it to be accurate. I tried three loads with powder available to me here Sweden. I measured the velocities with my chronograph and results are following: 1925 f/s, 2106 f/s and 2253 f/s.
In all these velocities my bullets tumble.
I suspect bullet shape which is a bit weird. It is rather long, has only 3 driving bands and bearing part of the bullet is quite short. It seems that my rifle has a problem in stabilizing this bullet.
Is there a cure for this or I need another mould which would drop a bullet with more driving bands?
Roman