Rocketman,
Have you conducted, or do you know of any research concerning Young's Modulus of good Damascus barrels? This would be in reference to the elastisity of steel shot passing through the choke constriction and if the Damascus barrel expands and contracts.
I witnessed steel shot, #2's and smaller, being fired in Damsacus guns with no noticable effects. The chokes of one 12 gauge Parker's Damascus barrels were measured .030" and .035" constriction and minimum barrel thickness of .030". I was so amazed at that Damascus "steel shot special" that I bought it.
The story behind the subject Parker is that the owner thought that the chokes were .015" and .020". Only later when he had access to good barrel thickness and choke gauges did he realize his mistake. Of course, he continued shooting that gun. When I bought it about 150 rounds of high quality steel 4's and 2's had gone throught those chokes. As one might guess the stock is cracked from the recoil of those steel loads.
If I could obtain access to the means to accurately measure the barrel's expansion and contraction this gun might be sacrificed to research.
Respectfully,
Mark
Last edited by MarkOue; 02/25/11 08:43 AM.