I am a huge drilling and combination fan. I will usually carry one when out walking the forests and farmlands in rifle season. No whitetail with my Merkel combination last year but lots of bunnies! My current favourite is my Merkel (1960s) in 16g/7x65r. I picked it up on CGN in a trade. The gun was as new and is amazing. 1.5-6 power scope on claw mounts. It shoots the Sierra Tipped game kings 3 shot groups well under an inch. Carries well and truly can do it all.
The key to any of these types of guns is the quality of the regulation and spending the time to get your gun matched with the correct ammo that works for it. Once you’ve got that sorted they are great.
I have previously owned a FAIR combination in 12/9.3x74R. It could shoot the rifle into MOA groups but you needed to give it loads of time between shots as the barrel would heat up fast. Overall, it was a nice gun but it moved along.
I have a very drilling in 16x16 over 9.3x82R that is scoped with an original scope from the early 1900s. The gun looks like it has never been used. It was likely a guild gun as no maker marks but German proofs.
I also have a Greifelt and Co. 1930s drilling in 12x12 over 9.3x53R Swiss. I make brass by necking up and fireforming 7.62x53r Finnish brass. It’s open sights only but balances and carries wonderfully. My go to drilling is my 1960s Sauer in 16x16 over 7x65R. This shoots sub MOA with 175gr partitions and worked wonderful on my 4x4 whitetail 3 years ago.
I also run a Baikal 22/20g when I’m out for grouse in the forests. A little heavy to carry all day but works great and is surprisingly well regulated.
My most recent drilling is a Blaser 880 in 20g/7x65R/22 Hornet. I have not played with it much yet but it is looking promising.
I also enjoy using my Valmet 412s in various combinations. My 9.3x74r over 9.3x74r is a lot of fun.
I have also previously owned savage 24s, Antonio Zoli combination Chiappa. They simply could not compare with the other options.
Honestly, look on intersurplus as they have a lot of great German options for a great price. If I had to choose between a drilling or a combination, I’d go with the combination for easy of setup and frankly, I seldom use the second shotgun barrel while hunting. Used German guns that are decades old are often in great shape and are a literal fraction of the cost of anything new.
Have fun on this journey! It’ll take you down some rabbit holes for sure! As I’m writing this, I realize I may have a problem
Reach out if you have any questions!