Well yestterday was relatively cold in France.
3 degrees Centigrade.
My pet load of 41.7 grains of N550 under a 139 gr Lapua Scenar normally gives me about >0.5 inch 5 shot groups at 100 meters.
What I saw was vertical stringing with a normal grip. And horizontal with free recoil.
What is happening? Is it temperature? Should I up or lower??
Much appreciated.
3 degrees Centigrade.
My pet load of 41.7 grains of N550 under a 139 gr Lapua Scenar normally gives me about >0.5 inch 5 shot groups at 100 meters.
What I saw was vertical stringing with a normal grip. And horizontal with free recoil.
What is happening? Is it temperature? Should I up or lower??
Much appreciated.