|
Unkel,
What your seeing is the natural variations that exist between EVERY reloading manual, not just shotshell.
There are any number of reasons why loading data differ from manufacturer to manufacturer, and what is listed as the top load in one manual is well above the top load in another.
Just a few are:
Differences in the components, such as shot hardness, plastic density in the wads and hulls, and natural variations that occur from can to can and lot to lot of powder.
Operator differences. The people who put these things together can have different styles and techniques, even though they follow the exact same process as someone at another company.
Climactic variations.
Equipment differences.
The data for the loads shown are averages of thousands of loaded rounds, not just a few dozen or hundred.
There are many other factors that affect the data, and what is necessarily true for one company might not be true for the testing done by another company.
To be quite blunt, I personally don't accept Lee's contention that there is little difference between primers, as a number of other companies, including the powder and primer manufacturers, have shown through their testing that there can be significant differences.
------------------
Beware the man with the S&W .357 Mag.
Chances are he knows how to use it.
|