Re: 6MM ACKLEY OR 243 ACKLEY
Longdraw, I have decided not to build a 6MM Ackley and instead build a 6-284. I will be able to get more velocity with 6-284, and I will not have to fire form. I already have a 6.5-284, so I have plenty of Lupa brass. All I have to do is run those cases through the 6-284 full length die. This will be easier. I will be using 75grn to 87grn pills out of this rifle. My 6.5-284 is set up to shoot 139grn Lupa Scenars, so I need a rifle that I can shoot the smaller varmint pills at high velocities. This will allow me to see those varmints explode. Out of the 6-284, I should be able to get around 3850fps to 3900fps with the 75grn V-MAX and around 3600 to 3700fps with 87grn V-Max. I was hoping to get 3700fps to 3800fps with 87grn V-MAX out of the 6MM Ackely, but after some thinking and testing with a friend who has a 6mm Ackley we were only able to get around 3350 to 3400fps. He did this test before and his chrono was reading 3650 to 3700fps. However, after what Roper and some others had said on the board, I informed my friend that we should test his 6MM Ackley with a different chrono, sure enough 3650 to 3700fps with 87grn bullets was not happening. That is also another reason why I went to the 6mm-284, I should be able to get the higher velocities with 87grn V-MAX out of this round.