I have used R-19 but found IMR 4350 to be the best in my SAKO 26" bbl. I have never had a feeding problem with the L61R action with the 338/06 AI! Compressed loads and never a sign of pressure! I don't quote weights, but from 100 yrds to 350 hardly need any hold over! Just one mans doings, the improved part is not for speed, its for consistency, and that equals tight groups!
