Quote:
Originally Posted by Paul K
(Post 8888193)
I hear the Tavor also damages the brass as it's ejected- making relaoding difficult at best.
|
I remember way back when the HK91's were first introduced, they were accused of damaging brass due to their lengthwise striated chambers. They did this to reduce friction on extraction. The brass sure looked like hell, but it turned out it was entirely reloadable.
http://forums.pelicanparts.com/uploa...1448325347.jpg
Quote:
Originally Posted by red-beard K
(Post 8888193)
You can find an AR style rifle in .308 (AR-10) for around $1K. It won't be a name brand.
You might consider a bit more money and buy a FN-FAL. And maybe a bit more money and buy an M1A (semi-auto M14).
|
I went the M1A route with the wood stocked "Scout-Squad" version. I absolutely love that rifle. I have found, however, that it is a brass destroying beast. I had no idea before I bought it. The brass
looks great as it gets shot - certainly far better than what the HK91 spits out - but looks can be very deceiving.
Due to the nature of how this rifle cycles, it stretches brass considerably upon firing and ejecting. We consider "normal" stretching for centerfire rifle brass to occur at a rate that requires trimming the brass about every 8 to 12 reloads. "Hotter" (higher pressure) rounds can drop that to 2-3 reloads per trim. Older style, extremely tapered cases (.300 and .375 H&H), although operating at lower pressures, will need to be trimmed every 2-3 reloads as well. Really modern, steep shouldered brass (.22 and 6mm PPC's, etc.) never get trimmed, even operating at higher pressures. I's kind of a function of case shape and pressure - more taper and/or more pressure, more brass flow and more trimming.
Well, the .308 is a "modern" (relatively straight, non-tapered) bottle necked case, operating at moderate pressure. It lives forever in bolt guns. I now have a several 50 round "lots" (MTM plastic boxes full) that I just reloaded - and trimmed - for the third time. It looks like a 1:1 ratio. We throw out centerfire brass after its third trimming; too much brass has flowed forward, and we are looking at incipient head separation just in front of the solid head area of the case. So, wow - three loads per case, then crunch 'em and toss 'em. Ouch. Kinda spendy... I have black powder .45-70 and .45-100 cases into their second hundred loadings...
Oh well, that's all only pertinent if you reload. How are the AR's on brass? Do they chew through it like that, or are they better?
Oh, and one final note: Don't let the tales of .308 "recoil" put you off. Yes, in a light hunting rifle, its cumulative affect will take its toll. But that's not what we are talking about here; we are talking 10 pound gas operated semi-autos. I would honestly categorize the recoil of my M1A as "virtually unnoticeable". And that's not some macho man tough guy blather - I hate recoil as much as the next guy. Yes, I bang away with the big thumpers (.375's, .458's, etc.), but I fully understand the affects that has had on me, try to minimize my time with them, and actually have to work my way back up to them when they have sat idle for awhile. A ten pound gas operated .308 ain't even close to the same league - if you can shoot a light little .22 all day long, or a light little .223 carbine all day long, you will have no trouble mastering an M1A or similar full size rifle.