Not with this brand, but there are other RTA RSC's available. You can spend days or weeks researching the subject. But unless you have several thousand dollars or more to spend and somewhere you want to place a 1,000lb dead load in your house, I suggest you buy the best priced RSC that has at least 2x your present capacity needs and comes with features you want. In reality, the burglar resistance to most RSC is almost exactly the same despite how many extra "security" features they tout.
Of course, if you have a $100,000 collection and live 30 minutes from the nearest fire station you may need more than someone with a $5,000 inventory, 2 minutes from fire trucks.
My point is that unless you are getting into true TL15 or greater rates safes, I'm not convinced brand name or slight upgrades to steel make that much difference. If you do get into TL15 or better, again, the rating is there. Everything else is just finish and features.