Browning BPR - 22 LR - 40 Grains, Ammo

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BallistiXPro Information about this ammo:

Bullet weight: 40 grains
Bullet Style: Round Nose
Total weight: 51.2 - 53.7 grains (average 51.9 grains)
Total length: 0.975" - 0.99" (average 0.978")
Brass width (Rim): 0.27" - 0.276" (average 0.273")
Brass width (Body): 0.221" - 0.225" (average 0.223")
Velocity (Rifle): 1255fps at Muzzle, 1112fps at 50 yards
Energy (Rifle): 140 ft-lb at muzzle, 110 ft-lb at 50 yards
Velocity (Handgun): 1060fps at muzzle, 100 ft-lb of energy
Drop: -6.5” at 100 yards, sighted at 50 yards

Browning BPR - 22 LR - 40 Grains, Round Nose Performance Rimfire Ammunition

The Browning 22lr - 40 grains ammunition is a decent practice ammo. Although while preforming my evaluation one of the bullets exploded in the chamber, basically shooting fire and brass out of the ejection port. While I am sure this is not the standard for Browning or any other ammunition manufacturer these things can happen. No damage was done to my gun, I was wearing the proper safety gear and I was not injured either. A little shaken up, but okay other than that.

The Browning ammunition flies at 1255 fps at the muzzle producing 140 ft/lbs of energy and a -0.5" trajectory. At 50 yards this ammo is still flying at 1112 fps with 110 ft/lbs of energy and a 0.0" drop in the trajectory. At 100 Yards the drop is 6.5" though. But zero to fifty yards this ammo flies pretty darn flat.

On the box they also give separate spec's for pistols and calling the above rifle ballistics and the pistol ballistics show 1060 fps at the muzzle of the pistol and 100 ft/lbs of energy.

Of course these are all averages contingent upon the fact that you have an average barrel size. If you have a longer barrel the ammo is going to fly faster. For instance my competition Ruger Mark IV has a 6.88 inch barrel, so it will have a much higher muzzle velocity and energy than a gun that has a 5 inch or 4 inch barrel.

The results of the precision evaluation are as follows: Top to bottom my grouping with flyers was 2.5 inches and left to right 2.75 inches. Without the flyers my grouping was 1.75 inches top to bottom and 1.625 inches left to right. I had 9 flyers meaning the quality of the ammo is at 82% which is really high. This also mean that every 5th one or so is going to be inconsistent. Thus proving once again that 5 rounds is just not adequate to evaluate the precision of ammunition.

Browning BPR - 22 LR - 40 Grains, Round Nose Performance Rimfire Ammunition
Close up of the Browning Rimfire Bullets, 22 LR, 40 Grains, BPR
Browning BPR - 22 LR - 40 Grains, Round Nose Performance Rimfire Ammunition