When we mostly used military .303 Br rifles and ammo, we used to clean and oil our rifle barrels as soon as possible after shooting. This was because of the corrosive primers - plus it was drilled into us that this was the right thing to do. And even now I would generally clean and oil the barrel of any centerfire rifle after I'd used it, corrosive primer or not.
On the other hand, we seldom cleaned the barrels of our .22 rimfires, and there has never been an obvious problem.
So I'm thinking now that I'm using lead boolits, Federal Large Rifle Primers and modern powder, there is probably no urgency to clean my centerfire after I've used it (unless I've been out in damp weather).
It is convenient if I'm camping for a week to simply not clean my rifle.... and to be able to pick it up and use it without wiping the oil from the barrel.
Is my reasoning faulty?
Thanks in advance for your thoughts.... Coote.