The Firing Line Forums - View Single Post - New Marlin XS7 7mm-08 First Load Workup

FiveInADime · December 4, 2012, 09:17 AM

Yes, I shot the groups round-robin style as in the OCW method. The first eight shots (one from each charge weight) were fired at one target to get the elevation close and foul the bore. The groups are 4-shot groups.

I didnt really notice until later but with the targets laid out as in the picture you can see a remarkably even increase in elevation with each step in charge weight. That's encouraging. I just loaded 10 rounds of 45.2, 46.3, 46.6, 46.9 to try out. It looks like accuracy might come back just above 46 grains. These were loaded 0.01" off the lands.

December 4, 2012, 09:17 AM	#10
FiveInADime Senior Member Join Date: January 25, 2012 Posts: 607	Yes, I shot the groups round-robin style as in the OCW method. The first eight shots (one from each charge weight) were fired at one target to get the elevation close and foul the bore. The groups are 4-shot groups. I didnt really notice until later but with the targets laid out as in the picture you can see a remarkably even increase in elevation with each step in charge weight. That's encouraging. I just loaded 10 rounds of 45.2, 46.3, 46.6, 46.9 to try out. It looks like accuracy might come back just above 46 grains. These were loaded 0.01" off the lands.