Re: Humbling experiance the other day. Maybe someone else can learn from this!
Originally Posted by gbp
was there a difference in ambiant temperature? or was the cartridge allowed to rest in a hot chamber for an extended time?
I do not let cartridges sit in a hot chamber.
Ambient temps were within 5 degrees.
NOTE: The original bullets at my OACL measurment were .020" off the lands. The new ones, at the same OACL were .002"
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.