B&P 2 1/2" "High Pheasant":

[OH Osthaus]

These were the shells handed out with registration for the hammer gun event at the vintagers one of the years it was held in Millbrook, where most of the guns were likely damacus.

[Double Lab]

Bruce;
At 1160fps/6530psi I would'nt hesitate to shoot them in any of my damascus guns. If your GH is in good, sound condition then you should be ok. Have it checked by a qualified gunsmith. You can also send your gun to me and I will give it a thorough 10yr test to check it's condition.