Redlg155
June 4, 2003, 07:52 PM
Ok...I'm not sure if all HESSE Arms products suck, but a CETME my dad bought that was manufactured by them sure does.
We finally went to the range today to test my new AR and his CETME that he bought in a private sale in a gunshow. We chambered a round and sent the first one downrange. Round fired just fine, but the empty casing was stuck in the chamber. I didn't think much of it and rechambered another round. Same problem. Failure to extract and eject. This time I decided to check the rifle and empty.
The following problems were noted.
1. Blown primer pocket. Primer was 3/4 way out.
2. Deeply engraved chamber flutes. Way to deep for normal.
3. Case neck expanded to .35 caliber.
4. Rifling has a burr at the end of each land where the chamber ends.
The ammo used was from a battle pack of Port Surplus. The ammo was no suspect because I used the other half in a FAL with ZERO problems.
My theory is that the burr at the end of the rifling temporarily stopped the bullet enough to seriously raise pressures. This combined with an oversized chamber cause the shell casing to "swage" into the chamber flutes, enough to prevent extraction. This overpressure also caused the primer pockets to uncrimp and pop out of position.
I could of course try to get these burrs out, but that wouldn't address the oversized chamber issue.
Anyway, I'm going to try to contact HESSE and see what they can do. I'm sure the original owner sold the rifle because he couldn't get it to work. I'll let them know and see if they will back up their product.
Good Shooting
Red
We finally went to the range today to test my new AR and his CETME that he bought in a private sale in a gunshow. We chambered a round and sent the first one downrange. Round fired just fine, but the empty casing was stuck in the chamber. I didn't think much of it and rechambered another round. Same problem. Failure to extract and eject. This time I decided to check the rifle and empty.
The following problems were noted.
1. Blown primer pocket. Primer was 3/4 way out.
2. Deeply engraved chamber flutes. Way to deep for normal.
3. Case neck expanded to .35 caliber.
4. Rifling has a burr at the end of each land where the chamber ends.
The ammo used was from a battle pack of Port Surplus. The ammo was no suspect because I used the other half in a FAL with ZERO problems.
My theory is that the burr at the end of the rifling temporarily stopped the bullet enough to seriously raise pressures. This combined with an oversized chamber cause the shell casing to "swage" into the chamber flutes, enough to prevent extraction. This overpressure also caused the primer pockets to uncrimp and pop out of position.
I could of course try to get these burrs out, but that wouldn't address the oversized chamber issue.
Anyway, I'm going to try to contact HESSE and see what they can do. I'm sure the original owner sold the rifle because he couldn't get it to work. I'll let them know and see if they will back up their product.
Good Shooting
Red