Ok guys, I'm new, so this may sound dumb. I went to the gun show today. Was able to pick up powder, (wrong primers) and some .40 FMJ bullets. Still being new at this, I measured and weighted the bullets....is that dumb to start? While weighting the bullets I found they ranged anywhere from 178 to 181.5 grains. Do I need to worry? Ok stop laughing....I just want to make sure I don't screw something up the first time I go to load. PS....I'll be putting two boxes of small pistol magnumn primers up for trade/sale in the classified.