Post by: Sabotloader on April 11, 2019, 04:47:47 PM
At .458 it is somewhat difficult to get through the crown of the regular 45 cal. muzzleloader, but once through the crown it loads very well. I have chosen to size the barbs on the bullets to .454 allowing it to pass through the crown of regular ML bore easier.
I have really good luck shooting this bullet and really good groups! But, all my testing has been done with BH-209 powder. The test today was to see if I could get similar results using T7 powder, which I normally use. It is just so much less expensive to shoot. Plus in Idaho where I am required to use cap ignition during ML season, I was really interested if T7 would get the job done.
Today proved T7 works just fine! but it needs to be noted the bullet needs to be loaded in a dry barrel!
This picture shows the result of today's run to the Rock Pit.
(https://i.postimg.cc/Y24Cs48N/4-11-19-Shoot.jpg)
Back in March I did another test shoot trying to compute the BC of the bullet and completing a Ballistic Chart for the bullet. I will tell you the group shot could have been tighter and would have been tighter if I was not so concerned about shooting through two chronographs especially the one at 100 yards. It would be a real pain if I were to shoot one of the chronographs.
I also developed a 'Bump Stick' to help me get the bullet through the crown and started down the bore.
(https://i.postimg.cc/qgfYmDwF/Lehigh-458x260-CF-BC.jpg)
The rains came again this afternoon and cut the shoot short, but I got what I needed done - would have just liked to have shot a little more.