Posted July 16, 2018 11:00 am by Comments

By Tom McHale

This .308 150-grain Sierra Matchking has a high ballistic coefficient due to its sleek aerodynamic shape.

Tom says Ballistic Coefficient & Bullet Math is simple, keep reading to learn some shooting skills in our new long-range shooting science series.

Ballistic Coefficient & Bullet Math : When Long-Range Shooting distances increase, details like ballistic coefficient of your bullets become a significant factor.

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This .308 150-grain Sierra Matchking has a high ballistic coefficient due to its sleek aerodynamic shape.

The other is a 150-grain Sierra Matchking. It’s a jacketed bullet with a tiny hollow-point, non-expanding design. The base is a boat-tail shape. It’s great for accurate target shooting. Now, let’s launch them both at 2,750 feet per second from a Sierra Bullet Blaster 7000 rifle and see what happens.

After running the trajectory numbers based on atmospheric conditions here where I live in South Carolina, we get the following results.

Sierra .308 150-grain FP Sierra .308 150-grain Matchking
Muzzle Velocity 2,750 fps 2,750 fps
Velocity, 100 yards 2,379 fps 2,510 fps
Velocity, 500 Yards 1,334 fps 1,649 fps
Velocity, 1,000 yards 868 fps 1,029 fps
Muzzle Energy 2,543 ft-lbs 2,534 ft-lbs
Energy, 100 yards 1,885 ft-lbs 2,098 ft-lbs
Energy, 500 yards 592 ft-lbs 906 ft-lbs
Energy, 1,000 yards 251 ft-lbs 352 ft-lbs
Bullet Drop, 100 yards 0.00” 0.00”
Bullet …Read the Rest

Source:: AmmoLand

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