8 gauge choke dimensions

Craig Larter · 02-19-2023, 12:02 PM

I do not have any published data but do have three Parkers with letters that specify choke, 60660 8ga O grade letter says RH 115 #4 pellets in a 30" circle at 40 yards LH same. The chokes measure .025/.026. 157318 PH 8ga specifies in the letter RH modified, LH full and the chokes measure .038/.042. 161252 GH 8ga specifies in the letter to pattern with BB shot RH full, LH full. The chokes measure .046/.045.
It seems to me from a very limited sample that the restrictions are the same you would encounter in 12 and 10ga guns.

Mike of the Mountain · 02-19-2023, 12:35 PM

Makes sense to me Craig. .025/.026 should be IM/IM, .038/.042 should be F/XF and .046/.045 should be XF/XF.

Mike of the Mountain · 02-19-2023, 03:18 PM

Craig, the letter for my gun specified it should "shoot buckshot close". I'm going to figure both barrels are either F or XF. It was surmised that since this gun was ordered for a lumber company in the FL panhandle in 1906 that they had either a bear or gator problem they wanted to control. Buckshot out of a 34" 8 bore would be bad-medicine for those critters!