Choke Question

[Pa SxS]

Robert, an educated guess is that your gun was originally full and full. An examination of the patterning found in the stock books show Parker used a pattern of 18" x 24" in the real early years (distance not known) or a 24" circle at 45 yards. Patterning using a 24" circle at 45 yards was standard until about the time your gun was built. The vast majority of pellet counts for these guns were 170 pellets of size 8 shot. Parker would choke their new guns full and full unless specifically ordering different chokes. The other interesting thing is that in the same stock book, there are 12ga. guns with pellet counts of 250 pellets of size 7 shot but it was in a 30" circle at 40 yards. Later, the 30" circle at 40 yards was what Parker used but with either 7 or 8 shot. I think they might have used different circle dimensions and distance on 28ga. or .410 guns.