Powder Burn Rate Chart: Fill & Download for Free

It is easy to find reloading manuals, and they give charts of how fast powders burn. Get 2 or more manuals, or use the manufacturers online recipes and compare them to a published recipe from a bullet manufacturer. Many manuals give thorough directions on how to choose a bullet and powder to get what you want. Due to its fast burn rate, if a manual does list Red Dot for a .357 load, it will be for a short barrel pistol. Carbine loads will be shown with powders with slower burn rates. Burn rates must be given consideration if you wish to stay safe. Call the manufacturer if you have questions which the manual does not seem to cover.

Because modern ammunition has different specifications for each cartridge fast to slower burning. Generally SAAMI specifications dictate.Just like different engines are designed to accept different fuels.But for safety and optimum performance, more varied burn rates are needed to match a particular caliber. See chart. (Note that a particular caliber will have multiple choices of powder, but will be within a burn rate range)Also they are classified as propellants and not explosives such as C4.Hope this helps.

I'm no sniper, but I'm a competitive target shooter and the skillset for actually taking a shot is the same. From what I have heard, being a sniper is primarily about reconnaissance, but since your question is about shooting, I'll go ahead with an answer.First thing you need to know is your rifle and your ammunition. That means complete familiarity with its performance in different conditions. You need to account for elevation (up/down motion) and windage (left/right motion). Knowing your rifle deals with elevation. Different calibres perform differently, so do different projectiles. I assume snipers spend plenty of time at the range and are therefore familiar with their elevation settings across various distances.They would therefore have a drop chart, either in their heads or in a little notebook, this gives them a rough idea of the effect gravity has on the projectile.Commercial example (photo credit: Hornady)I've got something like that across a load of plot cards for .308 coming out or a 30″ barrel. All with the particular cartridge load and range conditions specified.The key to a good elevation setting is consistency. You want to be able to keep getting the same point of impact with every round. That way, you know exactly where the projectile is going to land. As a sniper, you only get one go, so you're going to want to spend all that time on the range memorising what your rifle will do when you squeeze that trigger.Elevation can also be affected by things other than gravity. On the right side of stickledown range at Bisley, there is a small valley around 700 yards down range, if the wind is blowing away from or towards you, that can mess up your elevation as well. So you'll need to consider terrain features and how they will affect airflow.Bullet drop is also affected by air resistance. The higher the air pressure, the more deceleration your projectile will experience. This results in a power point of impact. So, higher altitude, lower air pressure, better energy retention, less bullet drop.Lower temperatures result in slower powder burn rates in turn slowing your muzzle velocity. This lowers the point of impact. Certain powders are less temperature sensitive. I think varget makes the standard par excellence of temperature insensitive powders (this is hearsay however, as I can't get a hold of the stuff so I'm stuck with Vihtavuori N140 and Reload Swiss RS50).That's just elevation. Now on to the dark art of managing the wind. First off, wind is made up of two equally important components, direction and speed. These two regularly conspire to throw your shot to the left or right of the target and I hate them. So, how do you figure out how much to compensate for it? Think of the wind as the hypotenuse of a right angled triangle.(image source: wikipedia)The wind direction is your angle A. The wind speed is the length of c. The correction you must make to land a bullet where you want to is b.Cos A = b / cYou have everything except b. Solve for B et voila, you have your windage adjustment. Learning how to read wind speed from your surroundings comes from experience. Lots of it.Other things that also affect windage include the coriolis effect stemming from the earth's rotation. I don't actually know how to deal with that as that's a constant and it gets factored into my average wind when I take my sighting shots, and every shot after that I make a wind call relative based on a relative change to previous shot. I don't think snipers get to make follow up shots so the coriolis effect is something they have to deal with.