I use Blue Dot in single shot 223s with light bullets.
For heavy bullets in non adjustable gas systems I would try IMR-4166. It is the same speed and density as IMR-4895, but with temperature stability and anti Copper fouling coatings. I have not tried it, but I would bet money that would work well.
For heavy bullets in non adjustable gas systems I would try IMR-4166. It is the same speed and density as IMR-4895, but with temperature stability and anti Copper fouling coatings. I have not tried it, but I would bet money that would work well.