Converting a Remington 700 SPS 308 into .358 Winchester?

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NelsErik

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May 14, 2009
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Payson, Arizona (Up on the Rim)
I acquired two Remington 700 SPS TACT AAC-SD 308's in trade for a '27 Ford body that I had no use for. I already own a AAC-SD 308 though and was wondering what it take to convert one to .358 Winchester. I just bought a Browning BLR in .358 Winchester for hunting here in Arizona, mostly Elk and Mule Deer. I figured the BLR would be a better hunting gun since it is considerably lighter than my AAC-SD .308 with the bipod attached. I shoot my AAC-SD long range and didn't want to change the setup. I also wanted more knock-down power and have tons of .308 brass.

I am no where near close to the accuracy in BLR that I am in my AAC-SD in .308. At three hundred yards my groupings are within an inch from the .308, in the BLR they are all over the place and I am lucky to keep them on the 16" gong. I really like the .358 Winchester round though, but would like to be more accurate with it.

Can I rebarrel or rebore one of my new AAC-SD .308's up to .358 Winchester? I already have a lightweight Bell & Carson stock that I would swap out the Hogue stock for. I don't know anything about headspacing, chambering, or anything else like that. Can this conversion be done? How much will it cost me? If I do all the tricks to the new .358 Winchester gun, like I did with my .308 (bedding, truing, etc..) can I get the accuracy that I want at 300 yards from .358? I doubt I will ever shoot an animal at 300 yards or more, but would still like the accuracy.

I have access to a full machine shop, including lathes and mills (CNC and hand crank). I bedded, squared and trued, and cut the barrel on my .308 myself.

Thanks!
 
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