I'm not trying to offer a solution that wasn't asked for, but you should really consider reloading. I know I wouldn't have "bought into" 300blk if it weren't for reloading, at least not at what it costs. I do get that getting into reloading can be expensive, but it will pay for itself pretty quickly especially when shooting something like 300blk where the price of factory vs loaded ammunition is so great.
Which reloading set-up do you have...and, if I might ask, how much do you have invested (total) in your reloading set-up? I'm wanting to get started in reloading (hopefully, this fall)...but am not sure which way to go for a reloader? Considering Hornady set-up at top of list right now!