Depends on what I'm loading. My old RCBS Uniflow meters very well. So if I'm loading 45 ACP (w231), 44 spec (Unique) 44 mag (2400) or 223 (H335), 45-70 (Re7) I throw the charge and weigh every tenth charge. Always seems to be right on the money. BUT, if I'm loading 7-08 or 30-06 (IMR-4350) I throw the charge a little lite and trickle in the last 2 or 3 grains. Both the IMR loads I use are max, by the way. I don't want to take any chances with them. They both work the best in my guns after carefully working up the loads. My handgun loads are well below max. This method has worked for me for 17 years with no problems.