Guns Unlimited in Omaha has the cases and when I recently purchased a BT-99 I went shopping for a case for it.
I ended up getting the Browning hard case for the BT-99, but when I saw this soft case I figure it was perfect for the SKB 85TSS I had. Only problem like I stated is it won't take a 34" barrel.
I was impressed with the case, it seems pretty rugged and lightweight. The felt lining is soft and protective. Plus for the price you're not too worried about being careful with it.
I would have no concerns about anything moving around inside it. That's not to say things won't be a little loose depending on their fit, but I think everything would stay in their own compartment.
Of course it is a semi-soft case so I certainly wouldn't sit on it, but I wouldn't have a problem stacking other gun cases on it or a range bag.
One thing, it is a soft case so it's not able to be used when flying commercially.
I seem to recall that Guns Unlimited were asking $79.99 for it.
My SKB and Browning hard cases are certainly better than this one, but I paid over $400 for those two cases.
If my SKB 85TSS and BT-99 had 32" barrels, I'd own two of these instead.
Blueraven