Originally Posted by BigBboy25
I've got a 6.5x47 lapua and want to get another barrel that has the same .473 case head diameter but boost's performance. So far I have narrowed it down to the .284 Winchester and the .280 Ackley Improved. The ackley is rted for 16% higher pressure than the .284 winchester so I am leaning that way. My question is, what would you folks choose to chamber this barrel n and why?
I have both and I don't compare. Their is two 284 thanks to the 6.5x284 Norma and OAL 3.228" on a long action and Mel Forbes build his 284 Model 20 with 3" magazine. Browning was the first to make bolt action 284 back in the late 60's and I wish I would of gotten one of them
Browning Safari .284 Win. - Browning Belgium Safari Rifles
The gain in my 284 is the long action and 27" long barrel and here is one a short action
.284 Win Tactical Hunter
I get 3048fp with 53gr/R-17 using 160gr AB seated out 3.150". I did drop my load down 1/2 gr and I'm using Win brass it's good brass and I do have some Lapua,Hornady,Nosler 6.5x284 case that I had for my 6.5x284 Norma rifle and I also shot Win cases in that rifle.
I had my 280AI long throated also which has some advantages and I have same barrel length as 284. For me it's nice to see the 284 where it's at today.