What is wrong with it now?
If you are going for accuracy you should forget Crome lined barrels. There is no need for them as pretty much all .308 and 3006 is non corrosive.
You can buy new barrels through tradex or from other members in the EE for 3006 and .308.
Many will have the tools to swap barrels for you as well
Is yours a shortened 7.62 garand? If so most barrels are not a simple swap as the oprod and stock is about a half inch shorter.
If you want a chrome lined barrel, get a Criterion in .308. If you use a Beretta bolt, it will headspace properly. The Criterion people produce a great barrel and they go to great trouble to building their barrels to the proper specifications.
A chrome lined Criterion barrel will time easily on an Italian Garand. And it will easily headspace.
Criterion uses a different process to chrome line their barrels and I have not noticed any loss of accuracy.
Why do you want a new receiver?
I had it checked by a gunsmith, he told me the headspace is a bit loose, and the barrel's sloppy. He did give it the "OK" for shooting some commercial ammo, but I know enough not to dive into firing off every shelf brand.
...
Chrome lined bore were developed for military applications to minimize wear and corrosion and to facilitate cleaning in service use. They are fitted to a lot of machine guns where high barrel temps, fouling and gas erosion are an issue. US GI M14 barrels are chrome lined as were our own FN barrels if my memory serves me correctly. Chrome lining isn't an exact science as the bore must be cut somewhat oversize for it with the interior dimension built up with chrome plating by electrolysis. It can be problematic to get a uniform thickness of chrome plating throughout the bore, whereas conventional button rifled bores are quite uniform in their dimensions. Another issue is that a chrome lined chamber cannot be finish reamed to set up correct headspace because the chrome cannot be cut by a finishing reamer. These barrels have the final chamber dimensions set up before installation, after which headspace is established by fitting bolts of varying dimensions until a bolt is found which will establish the proper go/no-go headspace parameters with headspace gauges.
...
I had it checked by a gunsmith, he told me the headspace is a bit loose, and the barrel's sloppy. He did give it the "OK" for shooting some commercial ammo, but I know enough not to dive into firing off every shelf brand.
You seem to be struggling with this based on the number of questions that you have asked concerning this rifle and appropriate ammunition for it.
From your previous descriptions you appear to have a 7.62 NATO chambered Garand that was assembled using the unique Italian 7.62 NATO conversion parts. In addition to the 7.62 chambering, the main difference between these rifles and a standard Garand is their shorter 23.5 inch barrel and correspondingly shorter op rod, stock and rear handguard. We do not know if this rifle was assembled by an Italian military arsenal or by someone else using the Italian parts as a kit. To help confirm this it would be useful if you would report the markings on the heel of receiver behind the rear sight as well as the markings on the right side of the barrel. A close-up pic of these would be helpful.
As indicated in post #2 if you wish to replace this barrel with a commercial .308 Win barrel you will also need to acquire a standard length Garand op rod, stock and rear handguard because of the longer barrel. Headspace is another issue. If the rifle was assembled by a military arsenal headspace would have been established for the 7.62 NATO round which means that headspace allowance would be considerably greater than that for a .308 Win round. The only way to establish exactly what the headspace is to use a selection of headspace gauges. Do you know what dimensions of headspace gauges your gunsmith used to do these checks? Headspace can be tightened up in a Garand by trial fitting a selection of bolts to find one which will provide tighter headspace with the existing barrel. Different bolts will quite often establish different headspace as a result of manufacturing tolerances on the bolts as well as accumulated wear on the rear of the bolt lugs. The degree of wear on the bolt lug seats in the receiver will also produce different headspace with different bolts. The post-war Springfield bolts, which can be found in new condition, are unworn and tend to be a bit longer than other bolts, so they can often be used to tighten up headspace. Whether the rifle is actually chambered for 7.62NATO or .308 Win, if the bolt does not close on a .308 Win "field" headspace gauge it can be judged safe to shoot. I like to see about 1.632 as the minimum headspace due to the build up of powder fouling in the chamber when firing. I'd also ask if you are getting case separations from whatever type of ammo that you are shooting as this is a certain indication of excessive headspace when new brass is used.
You mention that a gunsmith found the barrel to be sloppy. What does this mean? The only way to establish interior barrel dimensions and the degree of wear in the key areas of throat and muzzle is to use gauges of a known dimension. A new Garand barrel has a nominal bore diameter at the muzzle of .300. Anything up to .303 at the muzzle can be acceptable provided that the rifle still shoots well and that the crown is in good shape. Military overhaul criteria would replace a barrel which gauged in excess of .302 at the muzzle, but no dimensional standard was established for rifles in the hands of troops. If the rifle kept acceptable accuracy it was deemed to be serviceable.
I mentioned in another post that the Tipo 2 barrels that I own are only lightly used with none gauging more than .301 at the muzzle or .302 in the throat. That's more than a lifetime of shooting left for the average civvy Garand owner. I'd expect similar wear on your barrel. If you would like a rough assessment of muzzle wear insert a factory round into the muzzle and look at the distance between the mouth of the case and where the bullet rests against the muzzle. If the bullet goes in as far as the case mouth then the barrel is worn to the point of needing replacement. More muzzles have been worn out by improper cleaning and cleaning rod abrasion than by shooting. This is why a cleaning rod guide is a recommended accessory for a Garand.
There is nothing magical about having a chrome lined barrel as far as accuracy is concerned. More than 6 million Garands, and probably at least as many military replacement barrels were built, none of which ever had a chrome lined bore. Chrome lined bore were developed for military applications to minimize wear and corrosion and to facilitate cleaning in service use. They are fitted to a lot of machine guns where high barrel temps, fouling and gas erosion are an issue. US GI M14 barrels are chrome lined as were our own FN barrels if my memory serves me correctly. Chrome lining isn't an exact science as the bore must be cut somewhat oversize for it with the interior dimension built up with chrome plating by electrolysis. It can be problematic to get a uniform thickness of chrome plating throughout the bore, whereas conventional button rifled bores are quite uniform in their dimensions. Another issue is that a chrome lined chamber cannot be finish reamed to set up correct headspace because the chrome cannot be cut by a finishing reamer. These barrels have the final chamber dimensions set up before installation, after which headspace is established by fitting bolts of varying dimensions until a bolt is found which will establish the proper go/no-go headspace parameters with headspace gauges.
If you don't like the cosmetic appearance of the receiver and other metal parts the rifle can be re-parkerized to produce an as new military finish. As far as commercial ammo is concerned, this has been pretty much beaten to death in your previous posts about this. No matter what your gunsmith has to say, use MILSPEC ammo, handloads which are assembled with the correct propellants and bullet weights or use an adjustable gas plug if you want to shoot some brand of commercial ammo.
Slightly off-topic, the folklore about the Canadian FN C1 barrels was they were made to specification initially then someone decided they had to be chromed. Into the baths (?) they went. The resulting barrels were plated to a smaller inside diameter than original. The DCRA Service Rifle shooters sought out those few thousand rifles for their competition rifles because the barrels would hold tighter groups with sometimes indifferently quality controlled ammunition. Which was not to say DA was anything less than spectacular in the beginning.
Back to topic, does the original poster expect to get benchrest consistency with a Garand? There are far too many moving parts and other bits dangling off the barrel to be perfectly repeatable shot for shot. It is the nature of the design. However, by fitting good quality parts that are at the tight end of the tolerance range, he can get as good performance as that rifle is capable of giving.
I read your post again. 7.62 Nato is a different calibre from .308 Winchester. A 7.62 Nato chamber has longer headspace and to properly measure your receiver, barrel and bolt, you need 7.62 Nato headspace gauges.
http://www.brownells.com/gunsmith-t...-62-nato-maximum-chamber-gauge-prod41040.aspx
If your smith used .308 Winchester gauges, his readings would be off. Get hold of some 7.62 Nato gauges and as long as your bolt does not close on a field gauge you are good.
Before measuring, you should strip your bolt. Then make sure that the chamber is clean and dry. Then insert the gauge and gently try to seat the bolt.
https://www.youtube.com/watch?v=VvI97DVQS70
If your rifle passes the 7.62 Nato gauge test, you should buy a few cases of Hirtenberger 7.62 Nato ammo.
It is probably not a good idea to shoot .308 Winchester through your rifle. .308 Winchester cases have the same external dimensions as 7.62 Nato cases; however, .308 Winchester cases have thinner case webs. .308 Winchester ammo is also loaded to higher pressure and there is a risk that a .308 case can fail when fired in a 7.62 Nato chamber.
Now many folks have fired .308 brass in a 7.62 Nato chamber. But it still not the best practise.




























