Lots of good information here.Seems that most everything was covered.
I started handloading in the late 70's for my 243 using a Lee handloader (still have it)and now use a rockchucker press and somtimes a Dillon progressive press.
Over the years i have got myself into trouble a couple of times with two instances that stand out a come to memory often.
1st time was when i bought my son a BLR 243.The loads that i had been shooting in my 243 had always proved to be on the mild side and thinking that they would be fine in his. Wrong for sure.First shot blew a primer resulting in gas burn to face and eyes. I am glad that it was me and not him.Moral of story do not exchange handloads between guns.
2nd time was this last spring i was reloading some 223 amo for my REM 700P. I had just finished loading some 223 for my CZFS that will easilly take 4 to 5grains more Varget and H335 than the remington.I had bought a eletronic scale and weighing each load i had a senior moment and overloaded the ammo for the Remington. Result was a frozen bolt.Had i been using my balance scale set for the proper charge this would not have happen.The eletronic scale are great just be take care not forget what your doing.
NH