67rschev
Member
I have noticed over the last two winters that my pet / favorite load seems to suffer when the temp drops below 30 or so . I am using a fairly slow powder for my cartridge , Varget in 223 to be exact . Its know to be very temperature stable , and they advertise it as be so . I am running a fairly light load which chronos a little slow ( have not gotten speeds when bitter cold though ) , but 9 months of the year its the sweet spot . I always use magnum primers in all my 223 loading . Just wondering if its maybe its the shivering screwing up my groups , or if I need a different cold weather work up . Maybe a faster powder or hotter loading ? Whats all you say and feel ? Your observations ?