Not new, it's a restoration project I finished in 2000 from a bubba-ized original that had hacksaw applied to both barrel and stock.
I found a new-in-wrapper 2 groove barrel, and new C-stock to bring A4 back to issued config.
I was initially leery of the barrel, but it really likes my 155gr Palma and 168gr MatchKing loads, so it stays installed.
It probably helped that I used a pull-through match chambering reamer. When the bolt closes on the reamer, the chamber's perfectly cut!
What's new this week is my use of Adobe Lightroom with NEF (RAW) image format from the D300. Big files, but pretty neat!