Can lead nose and copper washed 22s be used in the same gun at the range without issue? (excessive buildup..etc)
Also what about jacketed centerfire ammo?

With my 38sp shooting i generally use semi wadcutter for non model marked guns and jacketed for model marked so it has not come up.

With the 22 ammo shortages of the last year i have become a lot less picky on what 22s i buy. I normally shoot wax covered lead SV but since found some good deals lately on copper washed HV.
So far i have used copper coated just for the boys plinking rifles not my 1930s-60s target 22 revolvers. Thanks

Bottom of the brand lead .22s crud up the barrel and I wouldn't mix them with plated. With good quality lead .22s I don't have a problem mixing them up with plated. I don't think you would harm the barrel in any case but accuracy and function (depending on action type) may suffer.

__________________
Stay safe people!

Ive mixed bulk plated with good quality waxed sv with no problems.

I've been shooting .22 LR ammo in handguns and rifles for over 40 years. It matters not if you shoot copper washed and then shoot plain lead. What really matters is to establish a consistent bore condition. For instance, depending on temperature, it is not uncommon for the first few rounds fired from a rifle to not hit precisely in the group center. Once a few shots have been fired, many rifles will with good ammo produce very consistent result. If you change to a different brand of ammo, you may possibly need to fire a group or two before things will settle down. The copper wash on a .22 LR bullet will not cause any damage at all to a steel barrel simply because steel is far harder than lead coated with a copper wash.

__________________
<><

All my lead stuff is CCI SV

If you shoot a lot of lead centerfire cartridges and the switch to jacketed, there is a possibility of excessive pressure if you have a lot of lead fouling. I can't say if it is significant or not because at one time many pistol shooters would run a cylinder full of jacketed before they left the range to blow the excess lead out so cleaning was easier.

I've never seen any 22LR ammo with copper plated bullets that had a heavy enough plating to consider them truly jacketed and have had no problems at all mixing lead and copper washed 22LR ammo.

With center fire ammunitions it's a different case. Most name brands of plated bullets have a layer of copper thick enough to leave a solid shell of copper standing in place if you melt out the lead core. So, IMO plated bullets should be regarded as Jacketed in terms of your question. Personally, I don't think it's wise to FOLLOW shooting lead bullets with jacketed bullets. If you have a situation where a poor choice of lube has left a lot of leading behind you could very easily create an overpressure result using ammo that normally would produce completely safe pressure levels. If you are going to mix jacketed with lead, I would suggest that you shoot the jacketed rounds first and then follow that with your lead bullets.

I've been mixing them for 50 years and if there is a problem, I haven't discovered it yet

No problems here.

Me neither. Never a problem.

__________________
USAF, 69-92
Vietnam, 72-73