SO aparently there is some program out there that will give you a rough estimate of what your muzzle velocity is based on powder, primer, and bullet weight imputs. Anybody know of it? I already know of the one that does bullet drop

Google "Ballistic calculator".

There are so many different powders, bullet styles, weights, and ballistic coefficients that it's not feasable to compile all that data. Each powder and bullet manufacturer has data for their stuff, and a few of them will give out the data for free. For the most part though, you'll have to buy a few reloading manuals. With all of the ballistic calculators I know of, you already have to know your velocity, bullet weight, and ballistic coefficient.

google ballistic calculator. There are a couple free ones from various reloading venders

google ballistic calculator. There are a couple free ones from various reloading venders

The way I read it, he wants to enter powder charge, primer, and bullet weight, and get velocity. Googling ballistic calculator will get him just that, a bunch of ballistic calculators. He said he already has that. For reloading data, I would google "reloading data":idea: A couple of powder companies list some free data.

Check out load from a disk (http://http://loadammo.com/). It is pretty close to what you are asking about.

Compare your loads with ones listed and interpolate the data. This should you in the ballpark ->
http://www.handloads.org/loaddata/

If you're working with a cartridge not commonly loaded or something with no published load data for a particular powder, most powder manufacturers have a ballistics person on staff that you can email directly with questions.

There are too many variables to get anything other than a rough estimate. The same *exact* load can vary a lot between two different guns. The only way to get somewhat accurate data is to chrono YOUR gun, shooting the same loads, with the same shooter. There's just no shortcut way to do it. It can take a long time and a fair amount of money to find a "pet" load for your particular gun.

Expect to find a few B.S. loads on the internet. If it looks completely wrong, it probably is. Some people will fudge their real numbers a bit for safety's sake (Some guns can take higher chamber pressures) or for a competitive edge (If it took three months to find the perfect benchrest load, not too many people will share that for free).

FWIW, Midway has chronographs on sale this month.