NorthernWeatherby
Member
Well I am building a .338 Lapua Improved on a Mark 5. I am first wondering what barrel length to go with? I am going to use the 300SMK, and I think a 1:9.4 Twist. I am also wondering if anyone has had any luck with making or mating a magazine to a Mark 5.
Thanks in advance.... gun)
Thanks in advance.... gun)