Never said it was easy, just an option, no need to bodge, ( basic maths really ...)bedding goes without saying.
Would totaly agree on the " Used but good " barrel, plus its quicker.
But as Thunderbox pointed out No 4 barrels are becoming scarce (in the UK), not many buckets full on hand any more.
Last lot of barrels I had heard of were P14 barrels at scotarms, but dont know what the condition was, would suspect they were the leftovers of when the fasion of the day was to convert a nice P14 to a target rifle.![]()