Long term barrel storage

[RB64]

I have 3 barrel blanks coming, two of which are for a 30BR. (Got a great deal on them all). By the time I get to the second 30BR barrel, God only knows how long that will be. I'd imagine 2-3+ years. Plus I have a newborn, so I'm not shooting as much these days and won't be for a little bit.

The problem is, I'm in Upstate NY and the climate and humidity swings here are insane. Rust is a problem in my reloading room.

I was thinking about maybe grease in the bore and vacuum seal the bags? Probably over kill, but I'd rather be safe than sorry and spend a day cleaning a barrel blank than have it covered in rust.

Any ideas on what to use or a better method?

Thanks fellas!

I use a Heavy oil , Lucas , use a wax on outside put it in a silicone impregnated gun sock store them in dehumidified gun safe and check it every year with a bore scope and re oil if needed .