Wheel Weights with BP '63 Percussion
Posted: Wed Mar 24, 2010 6:10 pm
Just got back from the range having test fired some 50 gr BP loads with commercial 100% wheel weight bullets - Lyman 515141 sized .512 with SPG.
I was told by the 'experts' that they wouldn't obturate. Wrong.
I first fired three of my own alloy, getting the customary sub-2" three shot group, benching at 50 yds. As usual, the fouling shot was out of the group.
I cleaned the bore and fired the ww loads, putting 5 into 1-1/2"! Again, the fouler was out of the group.
With my bullets at 100 yds, and the wind playing hob, I put 5 rds into 2-1/4", a full 2-3/4" left of the normal point of impact.
The 100% ww bullets printed one low on paper and two below. Since I wanted them to shoot using the same sight setting, I was disappointed.
More work necessary ......
I cleaned the bore and fired three more of my bullets on the previous target. They were dead on for windage in a 2-1/2" group, but 3" low of the point of aim. Shows what a strong tail wind can do.
I also had some 50-70 loads with the 100% ww bullets atop 28 grs 5744 for my Shiloh Military Rifle to test. Five rounds went into a triangular group measuring 2-3/4".
All rounds centred, well within the '8' ring. None too shabby for military sights and definitely 'minute-of-bear-deer-moose'.
Before packing it in due to the increasing wind, I fired three more at 100, getting a 3-1/2" group, one round 50% out of the '9' ring. Quite acceptable.
Rifling thru' the range bag, I realized that I had forgotten to bring along some BP 50-70 loads with the ww bullets ......; next time ......
I was told by the 'experts' that they wouldn't obturate. Wrong.
I first fired three of my own alloy, getting the customary sub-2" three shot group, benching at 50 yds. As usual, the fouling shot was out of the group.
I cleaned the bore and fired the ww loads, putting 5 into 1-1/2"! Again, the fouler was out of the group.
With my bullets at 100 yds, and the wind playing hob, I put 5 rds into 2-1/4", a full 2-3/4" left of the normal point of impact.
The 100% ww bullets printed one low on paper and two below. Since I wanted them to shoot using the same sight setting, I was disappointed.
More work necessary ......
I cleaned the bore and fired three more of my bullets on the previous target. They were dead on for windage in a 2-1/2" group, but 3" low of the point of aim. Shows what a strong tail wind can do.
I also had some 50-70 loads with the 100% ww bullets atop 28 grs 5744 for my Shiloh Military Rifle to test. Five rounds went into a triangular group measuring 2-3/4".
All rounds centred, well within the '8' ring. None too shabby for military sights and definitely 'minute-of-bear-deer-moose'.
Before packing it in due to the increasing wind, I fired three more at 100, getting a 3-1/2" group, one round 50% out of the '9' ring. Quite acceptable.
Rifling thru' the range bag, I realized that I had forgotten to bring along some BP 50-70 loads with the ww bullets ......; next time ......