Czech 7.62x25 Surplus

C

cainesy

CGN frequent flyer
Rating - 100%
18   0   0
Location
The ROCK
Hello folks, just a fast question. Has anyone tried this ammo, and how will it affect my TT-33. Its dated 1954 and it seems really dirty outside, as well as around the primers, its pretty cruddy actually. Should I be worried? Any and all thoughts appreciated. Cheers.
 
It's powerful, it operates your pistol well and safely. Clean out the corrosive priming residues after each shooting session, before you go to bed for the night and all will be well. If you don't clean it, there is a very good chance you will get irrepairable rust damage to the bore and even the slide in the ejection area.
 
MiG25 said:
can't tumbling live ammo break up the powder grains dramatically increasing burn rate and pressure? in other words, isn't it a very bad idea?
Click to expand...
That's correct AFAIK too.
Powders have a coating called a deterant IIRC. This allows a controlled rate of burning of the powder if you don't mind my desrciption.
Tumbling of live ammuntion could remove this coating on the powder granuales and changes the rate of burn.
I believe the age of the ammo, along with the conditions of storage, factor in here in a major way. If the brass is heavily tarnished, could not the powder inside be affected after a long period in damp confines? Either way it's a bit of a gamble without a more intimate knowledge of the powder inside the case. Why take the chance I say?
 
Breaking down powder with tumbling is an old wives tale.

Powder is tumbled as part of the manufacturing process to coat the graphite. The deterrent coating is absorbed into the grain and cannot be rubbed off.

I have accidently left ammo in the tumbler for the weekend. Just made it more shiney.
 
Ganderite said:
Breaking down powder with tumbling is an old wives tale.

Powder is tumbled as part of the manufacturing process to coat the graphite. The deterrent coating is absorbed into the grain and cannot be rubbed off.

I have accidently left ammo in the tumbler for the weekend. Just made it more shiney.
Click to expand...

how about breaking down the grains into smaller pieces and rounding them off? kind of how river rock is always rounded and smooth?

have you chrono'ed the ammo that was in the tumbler for the weekend?
 
Powder granules cannot be broken by tumbling, nor rounded. They can be rounded slightly while fresh, during the manufacturing process, and this is done during the graphite stage. The rounding is hard to detect. Once dried, the granules cannot be changed.

I have done research with a well-known powder manufacturer. We were TRYING to round the sharp edges more so powder would meter better.
 
You must log in or register to reply here.
Back
Top Bottom