They are a code used to denote choke size.
MOST BARRELS WILL HAVE PROOF MARKS TO VALIDATE THEIR STRENGHT, THESE VARY BY COUNTRY AND AGE. THERE ARE BOOKS TO ID THESE MARKS, BUT THERE ARE HUNDREDS.
Barrel marking include the proof marks, choke code and weight of the barrels. Please be specific and we can give a more direct answer.
These are mostly proofing marks and caliber and barrel length markings. There are books on the market that define Belgian proof marks
inspector marks, sn, proof mark, etc..
Depends on what they are. Could be choke markings, proof mark, etc..
Need model information. You listed the barrel marks on a shotgun that are on many different models. Also need condition and details of the gun.
A bullet that has left the barrel has marks left from its travel down the barrel.
These symbols are proof marks that were used by the belguim goverment to show that the gun in question passed there pressure tests that were required prior to shipping the gun.
250 USD.with the serial number that you have provided,your Browning standard weight auto-5 shotgun in 16 gauge was made in Belgium for browning in the year 1954.
yes they can
There are gold colored links on the chain and dots/dashes on the sprockets.
The roll marks