I got a new knight red hot nipple in the other day for my hawken and decided to retest some black mz with it in place.
Bore was swabbed between each shot and allowed to cool in the shade.
80gr Volume Alliant Black MZ, .490" round ball, .020" Bridgers Best Patches.
1,638
1,601
1,536
1,535
1,561
-----------
On the next five shots, I used a super tight fitting DRY patch after swabbing the bore. It was so tight I had to brace the rifle between my knees and pull hard until it popped back out.
1,500 ( Hang fire - After I swabbed the bore, I put it muzzle up against the fence and went inside for a break and I suppose some ran into the powder channel )
1,598
1,610
1,576
1,557
----------
Next I switched to a cotton duck patch material I picked up last year and haven't really done a whole lot of testing with. Figured I might as well give it a try to. I also used the super tight DRY patch after swabbing the bore between shots. This material I believe runs in the .022" thick range. Check out the jump in velocity just from a slightly thicker patch.
1,667
1,609
1,674
1,683
-----------
When shooting American Pioneer in the earlier years, I always noticed that when I would use a snug fitting projectile, velocity always jumped greatly and became more consistent. With a loose fitting projectile, I would always have to use a heavier projectile in order to obtain accuracy and consistent velocity.
I do have a lot more shooting planned for later this week, mostly with the new cotton duck material.
Bore was swabbed between each shot and allowed to cool in the shade.
80gr Volume Alliant Black MZ, .490" round ball, .020" Bridgers Best Patches.
1,638
1,601
1,536
1,535
1,561
-----------
On the next five shots, I used a super tight fitting DRY patch after swabbing the bore. It was so tight I had to brace the rifle between my knees and pull hard until it popped back out.
1,500 ( Hang fire - After I swabbed the bore, I put it muzzle up against the fence and went inside for a break and I suppose some ran into the powder channel )
1,598
1,610
1,576
1,557
----------
Next I switched to a cotton duck patch material I picked up last year and haven't really done a whole lot of testing with. Figured I might as well give it a try to. I also used the super tight DRY patch after swabbing the bore between shots. This material I believe runs in the .022" thick range. Check out the jump in velocity just from a slightly thicker patch.
1,667
1,609
1,674
1,683
-----------
When shooting American Pioneer in the earlier years, I always noticed that when I would use a snug fitting projectile, velocity always jumped greatly and became more consistent. With a loose fitting projectile, I would always have to use a heavier projectile in order to obtain accuracy and consistent velocity.
I do have a lot more shooting planned for later this week, mostly with the new cotton duck material.