I must say this is some nice brass if you are looking for new 300blk brass.
I have made almost 1000 300blk cases myself from converted LC and PMC brass. It is nice and does the job so far with no problems. I bought the Gemtech brass to try out some factory brass.
The Gemtech brass I received the other day is very nice. I received 250 cases and checked about 50 of them. Of the 50 or so that I checked it was all +/- 0.001" of 1.358".
I ordered the annealed cases and they sent non annealed by mistake but are making it right. Intact they sent me an e-mail informing of the problem before the brass even got here. They knocked some off the price if I want to keep the non annealed which I probably will.
I am not affiliated with Gemtech in any way other than being a customer. $112 for 250 cases my be a little expensive or not, I am not sure. I do know this is nice stuff if you are looking to save some time on the conversion process.