20 cal barrels were definitely made externally at one time, though I thought it had gone in house now, but in batches as might be expected
I think there was a Golden age of HW barrels, probably when old fashioned values met really good CNC machines
Then people leave / retire / die etc , skills get lost, and bean counters have more say (it's not new news right) _ ?
Around the time of the 95 and barrel weighted 16 inch barrels, a good HW barrels would shoot almost any pellets with little FPS variation, most noticeable in 22
(The lightweight 7.9 jsb's were't around then, first in UK as Wembley Mozzies I recall)
All the 20 cal barrels with modern pellet manufacture shoot great
The latest (and some old HW barrels) are definitely not in 'The Golden age' period
I'm sure like most manufacturers, at time outsourcing, off days, equipment problems, QC guy who doesn't give a a fart about shooting etc have all played their part.
I wouldn't want to not have my good HW barrels _ it's not so easy to make definitive statements I think about when / which, and you do have to be able to shoot to a standard to know if a barrel is good or not etc etc _
Looking for TO-6 Trigger unit unmessed with or T0-6 kit for 34