I used to try the range loading drill and found it a pain.
Now for rifle I load up 40 to 50 cases at home for my tests. The first 4 to 10 are pressure tests set .3 to .5 grains apart seated .025 off lands.The next 20 I seat at various seating depths from .100 from lands to on the lands using a mild charge weight in the middle of the test weight range. I shoot the pressure test first. Then the 20 to get a rough idea on seating depth.
The last 20 or so are loaded at home with the powder charge weight test with three or five rounds in increments of no less than .3 gns and no more than .5 rounds and seated at max length to the lands. I do a final seating at the range using the Lee and seat them at the best length determined by the seating depth test. These are shot these across a chrony to look for velocity nodes and grouping patterns. Completely Eliminates the pain of measuring powder at the range and allows optimum seating depth determination with fewest rounds fired.
here is a thread with pics and a better explanation. Turned out the 43.5 and 2.281 used in the seating depth test had the best numbers. I followed this with a 15 shot test at 300 the other day and it held a .6 MOA test group so I am loading 25 more to do a test at 600 and 800 to get the scope dope next week
I just lucked out on this one, sometimes follow up trips are needed to tweak in and fine seating depth and charges
https://thefiringline.com/forums/showthread.php?t=599693
Now for rifle I load up 40 to 50 cases at home for my tests. The first 4 to 10 are pressure tests set .3 to .5 grains apart seated .025 off lands.The next 20 I seat at various seating depths from .100 from lands to on the lands using a mild charge weight in the middle of the test weight range. I shoot the pressure test first. Then the 20 to get a rough idea on seating depth.
The last 20 or so are loaded at home with the powder charge weight test with three or five rounds in increments of no less than .3 gns and no more than .5 rounds and seated at max length to the lands. I do a final seating at the range using the Lee and seat them at the best length determined by the seating depth test. These are shot these across a chrony to look for velocity nodes and grouping patterns. Completely Eliminates the pain of measuring powder at the range and allows optimum seating depth determination with fewest rounds fired.
here is a thread with pics and a better explanation. Turned out the 43.5 and 2.281 used in the seating depth test had the best numbers. I followed this with a 15 shot test at 300 the other day and it held a .6 MOA test group so I am loading 25 more to do a test at 600 and 800 to get the scope dope next week
I just lucked out on this one, sometimes follow up trips are needed to tweak in and fine seating depth and charges
https://thefiringline.com/forums/showthread.php?t=599693