Double Naught Spy
Sus Venator
Ever wonder if maybe your reloads were loaded a little overly hot?
The attached image is of a MGM Half Size IPSC Silhouette Target in AR500 steel and is 1/4" thick. While the steel hardness can handle .223 and other such rifle rounds, the target is a bit thin and is really a pistol target. However, it was being used as an aim point for testing .45-70 handloads that were being chronographed. The angle of the target and other obstructions lessened the risk of bounceback impacts (although this does seem a bit naive in light of the .50 BMG bounceback video). There were no bouncebacks.
The gun was sighted well beyond the 25 yard target and first shots passed over the target and into the ground/berm beyond. As shots were brought down, impacts results. The target was not checked until after a total of 10 rounds were fired, at which time the chronograph was checked as well.
This was with 300 gr Hornady partial jacket hollowpoint with IMR 4198 powder measured at 54.0 grains fired from a H&R single shot break open rifle with a 28" barrel. It was not determined as to which shot penetrated the steel, but the average of the 10 shots was 2527 fps (10 feet from muzzle) with the difference between high and low shots of 49 feet per second and the standard deviation was 15.6 fps.
Note that there are three impacts. One glanced off the head. One in the shoulder that did not penetrate fully, but left a nice hollowpoint impression. The third impact is the penetrating shot at the belly.
FYI - These were not my reloads, my gun, or my chronograph, and the target was not leaning against a tree when shot (just posed there for the photo for better light). It was, however, my target.
The attached image is of a MGM Half Size IPSC Silhouette Target in AR500 steel and is 1/4" thick. While the steel hardness can handle .223 and other such rifle rounds, the target is a bit thin and is really a pistol target. However, it was being used as an aim point for testing .45-70 handloads that were being chronographed. The angle of the target and other obstructions lessened the risk of bounceback impacts (although this does seem a bit naive in light of the .50 BMG bounceback video). There were no bouncebacks.
The gun was sighted well beyond the 25 yard target and first shots passed over the target and into the ground/berm beyond. As shots were brought down, impacts results. The target was not checked until after a total of 10 rounds were fired, at which time the chronograph was checked as well.
This was with 300 gr Hornady partial jacket hollowpoint with IMR 4198 powder measured at 54.0 grains fired from a H&R single shot break open rifle with a 28" barrel. It was not determined as to which shot penetrated the steel, but the average of the 10 shots was 2527 fps (10 feet from muzzle) with the difference between high and low shots of 49 feet per second and the standard deviation was 15.6 fps.
Note that there are three impacts. One glanced off the head. One in the shoulder that did not penetrate fully, but left a nice hollowpoint impression. The third impact is the penetrating shot at the belly.
FYI - These were not my reloads, my gun, or my chronograph, and the target was not leaning against a tree when shot (just posed there for the photo for better light). It was, however, my target.
Anyway this is at 50 yds, with the factory peep rear and the Lyman type globe front with the as-supplied peep front sight. I set up the chronograph for the last group at 26.0 gr. of IMR 4759. Average velocity was 1454, with an extreme spread of 11.2 and a SD of 5.3.
