First, let me say that this thread is in no way to disparage Eric Cortina's method of tuning. He is too good of a shooter and his way works for him. However, when one becomes too dogmatic in their approach to a problem, they may encourage some resistance.
As an example, I will use short range shooter, Tony Boyer's method. I have interviewed Tony twice and this is his method of tuning. He told me that he does NOT jump bullets because he has found that those loads are inconsistent. He said that the jumped bullets may shoot small but the aggs suffer. Tony starts at "touch" with a given bullet and moves into the lands .003 at a time using three charges with each seating depth (mild, medium, and hot loads). When he finds a seating depth that not only shoots small but shoots to the same relative position on target with all three charges, he has found the ideal seating depth for that bullet and neck tension. Tony uses a lot of neck tension with N133 powder.
Eric is a great long range shooter and his method works for him, and Tony is the GREATEST short range shooter and his method certainly works for him. Good shooting......James PS-Tony added that he seldom chases the lands due to wear.
As an example, I will use short range shooter, Tony Boyer's method. I have interviewed Tony twice and this is his method of tuning. He told me that he does NOT jump bullets because he has found that those loads are inconsistent. He said that the jumped bullets may shoot small but the aggs suffer. Tony starts at "touch" with a given bullet and moves into the lands .003 at a time using three charges with each seating depth (mild, medium, and hot loads). When he finds a seating depth that not only shoots small but shoots to the same relative position on target with all three charges, he has found the ideal seating depth for that bullet and neck tension. Tony uses a lot of neck tension with N133 powder.
Eric is a great long range shooter and his method works for him, and Tony is the GREATEST short range shooter and his method certainly works for him. Good shooting......James PS-Tony added that he seldom chases the lands due to wear.