Maybe I'm out of the loop, but what difference does it make if the receiver and bolt are cast?
The specifications for the M-1 Garand call for a forged receiver that is machined to certain precise tolerances. It is very difficult to reverse engineer a cast receiver for the Garand that is dimensionally correct and that will be as strong as the original forged receiver. For safety reasons, the tolerances MUST be maintained. Improper tolerances quickly erode the margain of safety built into the design and you run the risk of incomplete bolt lock-up, among other issues.
Go to
www.fulton-armory.com and look at his tech reports of commercial Garand receivers.
A rifle can be designed to use cast parts, but for best results it needs to be designed around that manufacturing process from the beginning. For example, the Ruger Mini-14 was designed to be manufactured with a cast receiver and cast bolt (among other parts) and those parts were designed differently then if they were intended to be forged and machined.
For the Garand, a cast receiver will not have the strength of a forged receiver and will typically also have dimensional problems as well. A cast Garand bolt is much more likely to break then a forged and machined bolt.
Is a 60+ year old forged receiver any stronger than a brand new cast receiver?
Yes, the 50 - 60 + year old USGI spec forged receiver will be stronger then a brand new cast receiver. The USGI receiver will also be in-spec. (This does assume that the receiver is in good shape, as most are, and also isn't a 1960's commercial reweld)
Basically, I want an M1, but I don't want a worn out piece of junk. I don't want a full-of-history collector's item that I'll feel bad about putting through hard use. And I do'nt want something with a shot out barrel, worn springs, and a crappy stock, receiver cracking from old age, whatever, you know?
Yep, I do understand that you want a rifle you can use, and use hard if need be, and not just look at.
Trust me, buy a US Service Grade rifle from the CMP. You won't get a really collectable piece that's too valuable to shoot. What you will get is a rifle that's been rebuilt, possibly several times, and that has also been reinspected by the CMP for servicability before being sent to you. All the "worn out piece of junk" rifles are culled out during the evaluation process.
While there aren't any guarantee's, there is still a good chance that you'll get one of the M-1's rebuilt in the '60's that saw very little service since then. These often have new barrels and make great shooters.
At worst, you'll get a servicable rifle. The CMP stands by their rifles, so in the unlikely event that you get a rifle with a "shot out" barrel, or a damaged muzzle, call the CMP and they will make it right.
The worst thing about a CMP rifle is generally the stock. Some are nice, some are ugly, but all are servicable. If you get a nice one, just rub a couple coats of boiled linseed oil on it because it will be dried out from storage and call it good. If it's ugly, either refinish it yourself, have someone else do it, or get either a different GI stock or a new stock. There are several people out there who will either refinish your GI stock for you or sell you one they've already done for a good price. (You can also get a new commercial stock, but then you have to fit it, which is a pain)
I will say that if you shoot your Garand a lot, you will probably want to replace the op-rod spring. I've never had a problem with any of mine, but I will probably put a new spring in the rifle I shoot the most, just to be safe. It's a $5 part that takes 5 minutes to replace.
I want something that'll last me a lifetime, if you follow me, not something that's already at the end of it's service life.
To be honest, you are much more likely to get a Garand that will last you a lifetime by buying a CMP rifle then you are by buying a commercially produced rifle with a new, cast receiver.
In addition to the cast receivers and certain cast parts, those "new" rifles are built up with old GI parts that were sold as surplus over the years. These parts may or may not be servicable and in spec (reparking hides a multitude of sins).
In contrast, all the parts the CMP use came from the military supply system (usually as part of a complete rifle) and are checked by the CMP. If a bad part slips through, they replace it.
I really do't have the skill to fit and refinish a stock, install a barrel, whathaveyou.
Neither do I. The good news is that with a CMP rifle, you won't need to. The only reason you'd want to install a new barrel is if you wanted to go to a different caliber or wanted to upgrade your gun to a match rifle with a commercial barrel. In that case, there are many commercial smiths happy to do the work for you.
Yes, you might want to refinish the stock, but that's purely a cosmetic issue and isn't hard to do if you decide to do it . At the very least you'd be amazed what a good cleaning with Murphy's Oil Soap followed by a few coats of boiled linseed oil will do.
Personally, I've only refinished the stock of one of my CMP rifles. After that I've either left them "as is" or just lightly washed them with gentle detergent and rubbed a coat or two of linseed oil on them.
One last thought: CMP Garands are an authentic piece of U.S. history. These are the actual military weapons once issued to our soldiers. Commercial Garands incorporate some GI parts, but at heart are just copies with no soul.