New to BP shooting. I have a pair of Lyman Deerfield rifles. One in 54 and one in 50.
Been shooting a couple times a week at the range in preparation for an upcoming elk hunt.
Using my Garmin chrono and getting swings in velocity measurements.
My 54 PRB load is 90gr of Triple 7 3F. Gets me right at 1700 + fps.
Between each shot, I run a spit wet patch, then a dry patch.
I took the 90gr of volumetric powder and found it to be 75 gr by weight. Made up 15 tubes of powder at 75gr weight. Comfortable that powder charges are consistent.
CCI caps are new and same tin.
Seems the first 3 or 4 shots are consistent, but then more velocity variation.
What can I improve on?
Been shooting a couple times a week at the range in preparation for an upcoming elk hunt.
Using my Garmin chrono and getting swings in velocity measurements.
My 54 PRB load is 90gr of Triple 7 3F. Gets me right at 1700 + fps.
Between each shot, I run a spit wet patch, then a dry patch.
I took the 90gr of volumetric powder and found it to be 75 gr by weight. Made up 15 tubes of powder at 75gr weight. Comfortable that powder charges are consistent.
CCI caps are new and same tin.
Seems the first 3 or 4 shots are consistent, but then more velocity variation.
What can I improve on?
