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Posted: 7/25/2004 8:53:18 PM EDT
| Stupid ? but is the grain of a bullet the weight??????? Amount of powder? I feel stupid for asking. ahhhhhhhhhhhhhhhhhh |
It is the the weight of the projectile (the bullet). Oh, by the way, there are no stupid questions; everyone has to ask questions if they want to learn something.......  Also, if I recall correctly, there are 11 or 12 grains in a gram.....someone correct me if I am wrong. Wes |
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Btownboy: The "grains" you are referring to are the bullet weight, as measured in grains, with 7000 grains to a pound. You will see this information posted in various forms. Most .223 ammo is 'standard' with a 55 grain bullet. You will also commonly find it with a 62 grain bullet. The 62's are somewhat heavier. There is no correlation between wieght and accuracy: heavier bullets are not 'more accurate', they are merely heavier. Some extremely accurate .223 bullets happen to be heavier bullets in 69 grain, 77 grain, and 80 formats. These bullets are more accurate because of the greater care taken in their manufacture. They are made heavier for various reasons, mostly because shooters want more "aerodynamic" (higher ballistic coefficient) bullets that still shoot well at the 600 yard line. In this case accuracy is a function of bullet quality, not weight. Some extremely accurate bullets for the .223 are made in 50, and 52 grain wieghts. I have a few targets, shot with 50 grain bullets, posted on the wall over the reloading bench that show 100 yard 5 shot groups that can be completely covered with a dime, leaving no hole showing... You'll also note grains listed elsewhere on ammunition labels. The most common example is the old .45-70, sometimes listed as .45-70-405. .45 is caliber of the bullet. 70 referred to the original charge of 70 grains of black powder, and 405 referred to a 405 grain bullet. .30-30 is another example: .30 cartridge, with 30 grains of powder (and usually a 170 or 150 grain bullet) |
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