powder nomclamenture
- Thread starter boolit
- Start date
- Oct 30, 2004
- 24,419
- 3,419
Basically they are just #'s assigned to differentiate between powders. Some do have "Behind the scene meanings" other do not.
H-1000 used initially to load the 300 win mag. Did so well at 1000 yards that they used that to name it.
H380 38.0 grains did so well with the 22-250 Rem and 55 gr bullets (now deemed a hot load) that they named it that.
Now, some are so close together (burning rate wise that is---but not interchangeable!) that they use the same numbers
Example"
IMR 4350
H 4350
AA 4350 ETC......................
H-1000 used initially to load the 300 win mag. Did so well at 1000 yards that they used that to name it.
H380 38.0 grains did so well with the 22-250 Rem and 55 gr bullets (now deemed a hot load) that they named it that.
Now, some are so close together (burning rate wise that is---but not interchangeable!) that they use the same numbers
Example"
IMR 4350
H 4350
AA 4350 ETC......................
Just to add a little more specificity "ALL" powders have a different burning rate and it does "not " relate to its designated number. If you are interested in burning rates go on the net and type in smokeless powder burning rate chart. That will give you an idea of the realitive differences in burning speed. Typically the slower burning powders are for large capacity cases, faster powders are for medium to smaller cases. Bullet weight can also make a difference on whether a faster or shorter burning powder is used.There are some anomilies to this. Pistols and shotguns tuypically use very fast powder. The ultra mags use a slower powder. Thats a very short discription of burning rates.
