Mo-Ron, here is one link to get you started. Nitrocrushr has a great set of instructions somewhere on sled tuning. Maybe he can provide us with the link.
Upvote 0
You beat me to it! If you enjoy tuning, the nice thing about the 54/56 platform is that there are a number of adjustments that can be made in order to enhance accuracy. But, it takes patience and adjustments should be made systematically, one thing at a time. Detailed notes help. The tiniest change can make big improvements.Found it:
Diana 54/56 Sled Setting Tips - Airguns & Guns Forum
Diana 54/56 Sled Setting Tips, Air guns, Airgun Forumwww.gatewaytoairguns.org