To. swap units âº Amount. FTX® (Rifle) 41 Remington Magnum 190 gr. 300 PRC 178-250 gr. data **includes new A-Tip® Match load data; 338 Lapua Mag 270 gr. For example So as you can see â the grain, as a measurement refers both to the amount of powder, and the weight of the projectile (bullet) being â¦ FFg by weight then use that measure to produce the same volume of Black Powder Substitutes. So there is 437.5 grains in an ounce. Example: For a 180 grain .30 caliber bullet, SD = 180/7000 x .308 squared. Divide the bullets weight in grains (180) by the number of grains in a pound (7000), which yields .2571428. Lyman dipper and weighed 5 samples of each powder, then averaged. Smart Weigh SWS100 Elite Series Digital Pocket Scale, Small Digital Gram and Ounce Scale, Food Scale, Jewelry/Medicine Scale, Kitchen Scale 100 Grams by 0.01 Grams, Battery Included 4.6 out of 5 stars 6,337 FTX® (Handgun) Additional Data Sources Obsolete reloading data. When you see âgrainâ (sometimes abbreviated as âgr.â or âgrs.â) preceded by a number on a box of ammo, it is referencing the weight of the bullet. This isnât the weight of the entire round of ammunition, but just the projectile that leaves the â¦ Grains are abbreviated "gr." From. Grains are not to be confused with grams, which is a metric unit of mass. Black Powder Loads are normally measured in volume. vol. ELD-X® 41 Remington Magnum 190 gr. A grain is a unit of weight originally based on the weight of a seed, but now defined as 1/7000 th of a pound. 437.5 grains equals one ounce. Bullet size within a given cartridge can vary, but there is a general range of size for each ammunition cartridge. is 1.0 cc. For example, AR-15 ammunition has a standard size of 55 grains, but you can purchase ammo for your .223 rifle with bullets ranging from below 40 to over 70 grain. In reloading, charge weights, that is, the amount of propellent put into the empty case before the bullet is seated, is commonly measured and expressed in grams. Divide the bullets weight in grains (180) by the number of grains in a pound (7000), which yields .2571428. Likewise, 9mm Luger cartridges have bullets from 60 to 160 grains. 1 gr to g conversion. 1 Grain = 0.06479891 Grams (exact result) Display result as. 15 gr. As mentioned, a grain is a unit of weight equal to 1/7000th of a pound. measure to measure 100 gr. Grams are abbreviated "g." Progressive reloading presses dump a charge of powder set to fill a specific â¦ LOAD GUIDE FOR RIFLE AND HANDGUN EDITION 3.5 INCLUDES: â¢ The most up-to-date and comprehensive 223 Rem data available â¢ New data for: 30 AR, 30 T/C, and 6mmx45 PO B o x 158 â¢ M iles C i t y, M o n tana 59301 RELOADING POWDERS Gun Care Products Other superior products The grain or "troy grain" (gr) is the non-metric unit of mass used in the Imperial and U.S. customary units.Since 1958, 1 grain (gr) = 0.06479891 grams (g) = 64.79891 milligrams (mg) = 0.00006479891 kilogram (kg) = 0.00228571429 ounces (oz). Pay out for good gear and pay once, â¦ This time I started with a 4.0 cc. A grain is a unit of measurement of mass. Obsolete reloading data that has been retired from our Handbook of Cartridge Reloading is â¦ How much does 1 grain weigh in grams? weighs approximately 15 gr. 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