I just got off the phone with George talking about the CZ and TRG-S actions and long barrels and such.
There are 3 stocks available from McMillan for the CZ action, the Baker Special, the McHale and something else.
On hanging a long barrel off the CZ, George said he'd not want to go longer than 27 or 28 (and I'm assuming a heavy barrel because that's all I've ever seen him with). I asked about 32 to 34 inched and fluted and he perked up and said it's probably work but it might need some bedding under the barrel. He said there's only an inch of thread so there's not a lot of meat for the long barrel.
I also asked about other actions and the Dakota came up and also the Nesika actions.
I'm going to spend some time looking at the Nesika actions.