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308 To Ackley or Not

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Unread 02-20-2006, 12:05 PM
LB LB is offline
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Join Date: Jul 2004
Location: Upland, CA
Posts: 423
Re: 308 To Ackley or Not

I don't know a lot about Howa's, but I do own one in 22-250. The reworked trigger is, to my mind, better than a Remington. The accuracy is only mediocre to average.

I would not punch a factory chamber to Ackley, waste of money, in my opinion. As mentioned, not much room for improvement in capacity on a 308. The gain is a small increase in velocity and longer case life. If you want higher velocity buy a 300 or a 30'06.

No, I don't see much point in altering the factory barrel. Fireforming is a chore and I don't see that it would be worth it.

Good hunting. LB
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Unread 02-20-2006, 02:34 PM
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Join Date: Dec 2001
Posts: 1,013
Re: 308 To Ackley or Not

FM, When you get to looking at bullets like the Scirocco's etc they are a pretty long bullet and they take up case capacity which effects velocity. Bullet with a real high BC will help out on the energy big problem with the #'s you gave with a 180gr bullet the drop at 600/700 yds is around 10ft. Don't get me wrong when I say this, I like the ackley case have 8 of them but at some point you need to look at case capacity along with a bullet to make sure everything balances out.
I don't own an Allen Mag rifle but if you look at the case they are build off it provides enought case capacity to more than handle bullets at long range hunting. 600/700 yd hunting you need a case that will handle 70grs plus of powder. IMHO you need to cut the bullet drop in half to around 60" or less oin the data you gave. In my hunting rifles once I get a load they it's chronographed and then I can figure what the max ranges is based on energy @ 1000 ftlbs and with the ballistics programs that not to hard to figure out. Well good luck.
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Unread 02-21-2006, 03:35 PM
Silver Member
Join Date: Dec 2005
Location: Notthwest MO
Posts: 169
Re: 308 To Ackley or Not

Thanks guys. I have decided to leave it stock as per everyones advice. I have played with that ballistics software and for deer I just don't think I can do any better than a 150 and still have decent range, providing this rifle will shoot. If I can get a 150 to 2900 or better I am going to have a 600 yard gun. With a 200 yard zero I will have about 12moa give or take an inch or two of drop at 600. What bullet would you guys favor? Right now I am thinking the ballistic tip may get the nod when comparing lengths and case capacity. Any thoughts?
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