Have this 8700 but need reloading data.

Hope you have lots of it as it is no longer available. What cartridges do you need data for?

quote:

Have this 8700 but need reloading data.

Any idea as to what available powder is similar?

A very quick search reveals: http://www.reloadbench.com/gloss/aa8700.html

It is interchangable (to about the same extent as are different lots of the same powder) with data for H-870. AA8700 is usually a bit slower, but some of the data in the most recent Lyman manual shows it to be a tad faster in some instances. At any rate, using H-870 starting loads will be a safe place from which to work.

Accurate says it was manufactured for 50 cal and 20mm. Would like to know if anyone has loaded any for 270,30-06,300win mag,30-378weatherby,338 win and 375H&H. Have 8lbs would like to use.

Of the cartridges you mention, only the .30-378 is a good candidate for AA8700.

If you used a 160 grain bullet in the .270, AA8700 might provide acceptable velocities, and the same is true of a 200 or 220 grain bullet in the .300 Winchester, but the powder is marginal at best in these two calibers.

You would find it significantly too slow to provide acceptable performance in the other cartridges you name.

It shines in the .264 Winchester and 7mm STW as well as various large-cased wildcats.