[elkhunter11]

Just to add a few points:

-Not all loads listed in all manuals will be safe in all rifles. That is why you start at the minimum load, and work up.

-It is very important to learn to recognize pressure signs. Pressure signs can be seen in several forms, from heavy bolt lift after firing, to extrusion marks on the case head,to excessive case head expansion, to loose primer pockets after only a few loads. I recommend that a new loader does some research online, to find more information on identifying pressure signs. If you notice pressure signs, stop shooting, until you deal with the pressure issue.

-Those loose primer pockets are not worn primer pockets, they are stretched primer pockets. If you encounter loose primer pockets after only a few loadings, your loads are too hot.

-Be sure to avoid lube on the shoulder of the case, as lube on the shoulder will cause dents in your cases. If you are seeing dents in the shoulders, clean your sizing die.

-Be sure to learn how to adjust your seating die properly. A properly adjusted seating die will not contact the shoulder of a sized case. Adjusting the seating die incorrectly will push back the shoulder, and possibly bell it, so the rounds won't chamber.

-The COL can be very important as far as obtaining the best accuracy from a firearm, and the COL listed in the manuals will seldom provide the best accuracy in your firearm. The best COL for your firearm,can only be determined with your firearm.

-The velocities, and supposed "most accurate load" listed in a manual, are for that specific firearm, and those specific lots of components, and they can vary significantly in your firearm.

-When you change any component, back off the powder charge, and work up the load again.

-Loads that are perfectly safe in cool temperatures, can cause excessive pressures in warm temperatures.

-Since pressure signs don't usually appear until you are well past the normal operating pressure for the cartridge, I like to back off the powder charge until they disappear completely, and then back off a little more.