One must remember that todays shells are "expected" to operate the autoloaders each and every time. The companies "play to the audience". Faster powders produce more gas(pressure) in smaller amounts. While profit is what capitalism is about, in this case it is what the market "demands". We are a very small segment of the market. "Revdocdrew" has posted some excellent resources if one will but look. We need to realize we are shooting very special guns that require a bit of pampering/TLC. Part of that is more discrimination in our choice of "fodder". Best, Dr. BILL