I agree with all those that have recommended RL-15, H4895, or Varget with the 120 gr bullets. But if for some reason they don't shoot in your gun and since you already have H-414, I'll go against the grain a little here and recommend you try that. I've had great success with that powder and W-760 (supposedly the same powder) with 140 gr bullets in my 7-08s. I'd use the 250 primers. Great caliber - best of luck.

"Blessed is the man whose wife is his best friend - especially if she likes to HUNT!"

"Love the Lord your God with all your heart, soul, mind and strength, and love your neighbor as yourself. There is no commandment greater than these."