quote:

Originally posted by yumastepside:
Thanks Rolland, I'll try the 14/60 route. I'm making a truing mandrel first and some other tools for working on the little Italians before I start re-barrelling.
With all the gun guru's on this forum I thought I would have gotten more responses.
These actions are obviously not the most popular, or desirable, for a custom rifle but in my opinion, make a nice light sporter in the appropriate calibres.

Roger

quote:

Originally posted by yumastepside:
With all the gun guru's on this forum I thought I would have gotten more responses.
These actions are obviously not the most popular, or desirable, for a custom rifle but in my opinion, make a nice light sporter in the appropriate calibres.

Roger

quote:

Originally posted by Uncle Grinch:
Is the pictured Carcano now a single shot? I noticed the cover on the en-bloc ejection port.

quote:

Originally posted by dpcd:
I built that 9.3x62 Mosin, which actually shoots .5 moa, and I also built a few 35 Remingtons on 91s. What I am doing now is putting 450 Bushmasters on 91 Argentines. I said, here on AR, it couldn't be done; but I figured it out

quote:

Originally posted by dpcd:
No and it is not possible.
I've thought about a 400 Whelen though.

quote:

Originally posted by dpcd:
A very bad idea. And not made any more, for a reason.

quote:

Originally posted by vzerone:
My opinion is that it is pretty strange. Lothar Walther still offers a Garand barrel in 9.3 x 62. That is getting close to the stresses of the 458 Win Mag. As I recall, only a few people ever inquired about these and no one ever ordered. They were made in small numbers and were expensive. They had sold some in Europe and they worked well.



Garand Receivers and Bolts are made from Forged 8620 ordnance grade steel. Sporting receivers are not made from 8620 nor are they forged. Garand receiver material was not ever made from continuous cast and roll steel either. So, there are major differences between the steel of today and 75 years ago. While testing was no where as good as it is today, They were not using re-melt alloys. There is a difference between cast receivers and forged receivers. The elongated and compacted grain structure from 75 years ago from forging operations is considered overkill in todays market.



The 30 cal. M2 cartridge had a max adv. pressure of 50k PSI. This was the bulk of the 30-06 WWII ammo. This is also a CUP value. The 458 Win Mag has a rating of 53K CUP. The modern loads used in 458 Win Mag will be electrically measured and this will give a higher value. Same for the Old M2 load. Other loads for the Garand during WWII were a bit higher in pressure. Particularly the AP round and the grenade round. But no bullet. So pressure wise the 458 is about equal to the average sporting loads over the last 40 years.



S&B has been selling a duplicate M2 load for the last few years but I have not got my hands on any of it. Been trying!



There are some other things to look at.

As the gas port is nearly at the muzzle, there could be a harmonizing affect on the pressure between the two modern cartridges.
The bolt is not going to unlock until the pressure is very low. This is where the Garand has an edge over the M14. If you are using a 458 Win Mag, you can control the gas port size.
You do run a risk of accelerated wear by using the 458 cartridge. So long as the opening and movement of the bolt is not violent and it does not contact the rear of the receiver then it should work.
Just because you can and it will work does not mean it is a good idea. Unless it is done correctly it WILL cause accelerated wear. It is way to much work to get a gun set up to this level.
One area to look out for is the operating rod. In this case, it will be very fragile and it can bend or crack.