![]() If you have a specific cartridge (brand and load number) I can look it up for you and at least come up with the advertised BC. 22 LR load on the market We have no idea. but still not quite as good as advertised BC. Apr, 29, 2022 No Comments Practical Ballistics for. The same ammo fired in my Marlin 39A (Micro-Groove rifling) developed a considerably higher BC than when fired in any other rifle with conventional rifling. The advertised BC for all bullets is done with no rifling engraving because the manufacturer doesn't know what type of gun you will use. In all cases, the actual BC was not nearly as good as the advertised BC, no matter what brand. I have chronographed many different brands of 22 LR bullets then ran the results through Ballistic Explorer to get the actual BC. The Most Complete Encyclopedia by Academic Accelerator. Hyper-velocity bullets usually weigh around 30. Latest Muzzle Velocity Science News, Research Review & Scholarly Articles. If you go with match grade 22 LR ammo, the rated velocity (1080 fps) is quite uniform but these bullets typically have a very poor BC, which is why they are intended for 50 meters (or closer). 22 LR cartridges use bullets lighter than the standard 40 grains (2.5 grams), fired at even higher velocities. Lower BCs generate more air friction that slows the bullet down faster, thus a longer time to target. 22 delivers over twice the muzzle energy of a. Originally intended as a varmint round, the magnum. The goal for computing bullet drop is "time to target" where more t-t-t allows gravity to pull the bullet down more. Both cartridges are optimized to perform with the velocity generated by a. BC makes very little difference because the velocity of these bullets is very slow (compared to a centerfire 22 cal bullet) and not very uniform. Due to the better ratio of bullet mass to air resistance, Velocitor performs better at. Where only one velocity figure is available but not otherwise described by the information source, it is assumed to be the Rifle Muzzle velocity. This cartridge has a muzzle velocity of 1,435 feet per second (437 m/s). When I crank in BC for computing 22 LR bullet drop, I use. Where two velocities are available but not otherwise described, it is assumed herein that they are Rifle Muzzle and Rifle 100 Yard velocities. Generally, hollow points have a lower BC than solid nose bullets of the same weight. Standard Hunting Load Winchester Super X 40 Grain JHP For hunting varmints and small game at distances exceeding 125 yards, this is one of the best general-purpose loads for the. Looking in my Ballistic Explorer data base, I found the best to be. In a handgun, the muzzle velocity is noticeably lower but can still exceed 1,450 ft/s. ![]() Ltcnav, BCs for 22 LR 40gr bullets are pretty grim.
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