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alan · September 25, 2000, 11:34 PM

Frontsight:

What works well as 100 might not even hit the target at 600, for various reasons. The 300 yard dictum mentioned is usually sound.

Depending on what bullet you are going to use, and which brass, military match is good if available, try 4895 in the range of 39 to 42 grains, assuming a bullet weight not greater than 180 grains.

Slightly greater charges of 4064 would work, as would slightly lesser charges of 3031. I mention these powders, because I was personally familiar with them, especially 4895 and 3031. There are many others though. With a gas gun, you would likely be best off with propellants in the "medium" burning rate range. Try to duplicate the military loading, or come close to it.

If you could find a worth while quantity of FA Match Bullets, nominally 173 grain, .308" dia, though usually a little fatter and heavier, they often shot quite well in "service" rifles (gas guns). Otherwise, Sierra 180 and 168 grains Match King, and Hornady equivalent usually shot well too.

Hope the foregoing helps.

September 25, 2000, 11:34 PM	#4
alan Senior Member Join Date: June 7, 1999 Posts: 3,847	Frontsight: What works well as 100 might not even hit the target at 600, for various reasons. The 300 yard dictum mentioned is usually sound. Depending on what bullet you are going to use, and which brass, military match is good if available, try 4895 in the range of 39 to 42 grains, assuming a bullet weight not greater than 180 grains. Slightly greater charges of 4064 would work, as would slightly lesser charges of 3031. I mention these powders, because I was personally familiar with them, especially 4895 and 3031. There are many others though. With a gas gun, you would likely be best off with propellants in the "medium" burning rate range. Try to duplicate the military loading, or come close to it. If you could find a worth while quantity of FA Match Bullets, nominally 173 grain, .308" dia, though usually a little fatter and heavier, they often shot quite well in "service" rifles (gas guns). Otherwise, Sierra 180 and 168 grains Match King, and Hornady equivalent usually shot well too. Hope the foregoing helps.