In my oppinion, no they won't but, in some actions like the 44 Stevens, they aren't needed because you can't utilize the pressure advantage. Ideal used to advertize that they didn't wear barrels as a selling feature.

Frank

Don't know what your up to but gaschecks have no useful purpose in a single shot. If you are using them to protect the base so you can use larger amounts of slower powder you will tax the steel in the barrel and, probably over time ring it. Also unless the firing pin is properly bushed you will get flow back the primer into the firing pin hole. Yes it will ware  down the barrel faster than plain based lead. It will just do it slower than a full metal jacket. Think of it as just using a smaller piece of sandpaper on that stock. It will still sand down the wood it will just take longer. 
40 Rod

I do not believe that any two people (combined life spands) could wear a barrel out useing GC's. You have to keep in mine that the GC is NOT running on the barrel! It's running on the lubrication provided by the lubed grooves, just like a steel shaft runs in a copper or brass bushing. It's nothing like jacketed bullets running dry in a barrel. As boats stated, the throats can become erroded from high temp, high pressure loads. 

I know of no case where high pressure alone has rung a barrel. Barrels can burst at some pressure but, not ring. All ringing that I have ever heard of (including my own rung barrel) has been caused by a barrel obstruction, such as useing a wad in the case or something farther down the barrel, such as a bullet or GC that didn't clear the barrel or even something like snow getting in the muzzel. I used GC's shooting with the CBA for about 5 years and never lose one but, I would not use them in low pressure loads for fear of doing just that especially with the no crimp Lymans. Keep in mind they are not legal to shoot in ASSRA matches but you can use them in most CBA matches.

Frank

Frank
If you know of no case where pressure alone has ringed a barrel try reading Charlie Dell on chamber ringing. Or read Claude Rodrick's letter describing how using Ned Roberts loads of 4227 he ruined a Pope barrel. Or read Harvey Donaldson on chamber ringing. What do you think causes the ring?

40 Rod

I have a Marlin 1893 in 32/40. It's barrel has some pitting, so I occasionally use a gas checked bullet to keep some of the lead fouling down.  I can shoot more rounds and retain accuracy longer without cleaning.   
Kurt