6mm06 I hope you get something soon so we can have a report.
My 200 yds distance in the dark was difficult on a night with good moonlight I could see but not with cross hairs. Moving bait closer made huge difference for my operation, hence my 44 #'r the other week. My bait at 200 currently is a frozen mass beef trimmings I got from a butcher friend. It took a week for them to finally hit it after walking by it.
BP... 243 is a Savage, I am really liking these winchesters. It might also be that I am hitting them high in the shoulder area .....hammering them lights out when I hit them with 80 gr. I do have some 58 gr Vmax that I have not tried. Probably going to be a while before I try them. I hate to mess with something when it is working. On the closer bait will probably use 223 with 53 gr v max since those have been great with BANG FLOP effect out to 125 yds. for my shots so far.
Tonight I got home from work and not long after that .....coyotes howling not far away...daylight cant come quick enough now.
Good luck to ALL.