I'm new to 410's and recent purchased an H&R .410 bore with a full choke. I took it out the range to check the pattern and was very surprised with what I found. The first photo is a 410 bore 2 1/2 Winchester AA with # 9 shot fired at 10 paces. The box is 20 inches wide and the pattern measures 16 inches across. (Ignore the buckshot that was a different test) Again, this is my first 410 but the pattern is much larger than I would expect for a full choke at such close range. Is this normal?
For comparison the second photo is a 12 gauge 2 3/4 Winchester AA with #9 shot fired at 10 paces with a modified choke. That pattern is 9 inches across.
For comparison the second photo is a 12 gauge 2 3/4 Winchester AA with #9 shot fired at 10 paces with a modified choke. That pattern is 9 inches across.