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  #1  
Old 10-21-2019, 08:52 PM
FluffyTheCat FluffyTheCat is offline
 
Join Date: Feb 2014
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Default 6.5x55 Garand.

My 6.5x55mm Garand was successfully test fired today. It runs like a sewing machine!

The rifle has a six groove one turn in eight inch barrel. It has a standard gas system and the load was the 123 grain Hornady SST bullet, Hornady brass and 39 grains of Varget.

There were no signs of excess pressure and the load is extremely soft shooting.

The rifle is a Breda with a Breda bolt. Almost all the internal parts and the stock are Italian.

I will have pictures tomorrow.
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  #2  
Old 10-21-2019, 09:29 PM
76Too 76Too is online now
 
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What did you end up using for gas port size? Barrel blank specs? Rifling method used?

I want to be like you when I grow up...that is seriously cool.

And even though it's a Garand and we all know what it looks like...can we still have some pictures please? Maybe some target pics too...we'll be extra nice!
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  #3  
Old 10-22-2019, 07:00 AM
bruce bruce is online now
 
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Sounds good! Will follow future posts. Sincerely. bruce.
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  #4  
Old 10-22-2019, 02:38 PM
FluffyTheCat FluffyTheCat is offline
 
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I need help in posting the pictures. The gas port diameter is 0.073".

A number 49 drill bit.
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  #5  
Old 10-22-2019, 06:42 PM
DetroitGarandGuy DetroitGarandGuy is offline
 
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Who made the barrel?
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  #6  
Old 10-22-2019, 08:48 PM
FluffyTheCat FluffyTheCat is offline
 
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Criterion made the barrel.

The bolt face did not need to be modified. European 6.5x55 brass has a case head diameter of 0 476" which is .003" wider than the case head diameter of the .30-06 or. 308.

Hornady 6.5x55 brass also has a case diameter of 0.476"

With Hornady or European 6.5x55 brass the rounds are a tight fit in an en bloc. But this is not a problem if you use worn en blocs.

Remington and Winchester 6.5x55mm brass have casehead diameters of 0.473" and with this brass you can use new en blocs.

If you want to shoot factory 6.5x55mm, use the Schuster adjustable gas screw.

But if you want to use the standard gas screw, handload 123 grain bullets with Varget, IMR-4064, IMR-4895 or H-4895. You can get around 2700 fps and the load is extremely soft shooting.

The Hornady 123 grain SST has a ballistic coefficient of 0.510 and when fired at 2700 fps it is still travelling at around 1200 fps at 1000 yards.

The 6.5x55mm operates at around 45,000 cup and the barrel will last a long time.

Criterion uses button rifling and six groove rifling for this barrel. They also use the one turn in 8" twist.

The rounds feed and extract effortlessly and I could not be happier.

Last edited by FluffyTheCat; 10-22-2019 at 08:52 PM.
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  #7  
Old 10-22-2019, 10:49 PM
Submerge Submerge is offline
 
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Location: Jacksonville FL
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Quote:
Originally Posted by FluffyTheCat View Post
Criterion made the barrel.

The bolt face did not need to be modified. European 6.5x55 brass has a case head diameter of 0 476" which is .003" wider than the case head diameter of the .30-06 or. 308.

Hornady 6.5x55 brass also has a case diameter of 0.476"

With Hornady or European 6.5x55 brass the rounds are a tight fit in an en bloc. But this is not a problem if you use worn en blocs.

Remington and Winchester 6.5x55mm brass have casehead diameters of 0.473" and with this brass you can use new en blocs.

If you want to shoot factory 6.5x55mm, use the Schuster adjustable gas screw.

But if you want to use the standard gas screw, handload 123 grain bullets with Varget, IMR-4064, IMR-4895 or H-4895. You can get around 2700 fps and the load is extremely soft shooting.

The Hornady 123 grain SST has a ballistic coefficient of 0.510 and when fired at 2700 fps it is still travelling at around 1200 fps at 1000 yards.

The 6.5x55mm operates at around 45,000 cup and the barrel will last a long time.

Criterion uses button rifling and six groove rifling for this barrel. They also use the one turn in 8" twist.

The rounds feed and extract effortlessly and I could not be happier.
Didn’t see 6.5 listed on the Criterion website. Was this a custom made barrel by them?
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  #8  
Old 10-23-2019, 02:18 AM
FluffyTheCat FluffyTheCat is offline
 
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Criterion currently manufactures AR-10 and M1A barrels in 6.5 Creedmoor. These 6.5 Creedmoor barrels have six grooves and a one turn in eight inch twist.

So it was a matter of taking a 6.5 barrel blank and running it through the Garand CNC program and chambering it for 6.5x55mm.

The 6.5x55mm is probably better suited for the Garand because it is longer and it fits so nicely in the longer action.

6.5 Creedmoor would work also but it operates at much higher pressures and barrel life would probably be less. The 6.5x55mm is an enduring classic and it is what the Garand should have been originally chambered in.

There's a large smörgåsbord of factory match ammo in this caliber and a 6.5x55mm Garand with a Schuster gas plug would be more fun than a barrel full of monkeys.

With the standard gas plug handloads using 123 grain bullets offer fantastic performance with Varget, IMR-4064 or H-4895.

Criterion may put the 6.5x55 into limited production as a Garand barrel and it all depends if the demand is there.

But take it from me--for pure shooting enjoyment nothing, but nothing beats a 6.5x55 Garand. The free recoil energy of a Garand in .276 Pedersen was calculated to be 7.25 foot pounds which was half that of the Garand in .30-06.
A 6.5x55mm Garand probably has a free recoil energy in the 7 to 8 pound range which is the same as a bolt action rifle chambered for the .22-250.

Last edited by FluffyTheCat; 10-23-2019 at 03:10 AM.
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  #9  
Old 10-23-2019, 11:32 AM
ROC ROC is offline
 
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This project sounds so cool. I've always wanted to shoot a Garand in its intended caliber. Love to get one of these if they run a limited production. Maybe if enough forum members would commit to it, we could help influence that decision from Criterion.
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  #10  
Old 10-23-2019, 11:45 AM
dartem dartem is offline
 
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Location: MA by way of PA,VA,MD
Posts: 168
Smile Very interesting....

Cool rifle. Something I'd like to see a little more of. Really interested to see some targets esp at 300yds +
Regards,
Mike
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