Therefore, jump squat optimum power load can be determined simply by means of mean propulsive velocity or jump height determination in training/testing The jump squat is one of the exercises most frequently used to improve lower body power production, which influences sports performance.
For the .223/5.56 mm sequence, I decided to try both 55 grain and 62 grain M855 ammo. I wanted to use M193, but didn't have any kicking around, so For each string, 20 shots were fired through my chronograph and the average velocities taken. Finally, the velocity of each load in each barrel was...shot from the .223 Remington. One bullet with a low velocity of 951 fps hit about 2 inches below others of normal velocity, and one bullet with a high velocity of 1,118 fps hit about the same amount high. Bul-lets with velocities close to 1,000 fps, though, made a fairly tight group, under an inch, at 50 yards. Five of these Sierra bullets ... I did load some ammo, using both Reloder 15 powder and IMR 4895 powder, but I couldn't manage to get the little rifle to the range to test the ammo. So, when Junior and I decided to do some shooting, I put the .223 Handi in the truck. After we'd shot the 30-30, I brought out the .223 and asked Junior if he'd like to try it.
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