Hey I am new to the forum here, but am on several other AZ based hunting forums. I am relatively new to reloading, but am hooked. I am wanting to work up a load for my .280 using 160 grain accubonds... I have been told by several people to use either RL-22 or IMR 4350. I was curious if anybody knows what the max loads would be for these and also if anybody has worked up any loads similar to these. Also my gun is a Remington 700 Mountain Rifle with a 22 inch barrel. My ultimate goal is to get this rifle setup for 500 yards with a Kenton turret on my scope. Any help is appreciated!