Wyliecoyote wrote:What i can tell you is a quality double comes regulated from the factory with a specific load and the load data (bullet weight and speed, it's all about the velocity, not the actual load) should accompany the rifle on sale. The thing with doubles is like, say Holland&Holland, is they regulate to available ammo, theirs or some customer designated ammo. You go outside of that, best of luck. One barrel is easy, shoot, set sights. Second barrel with same load could be anywhere, and usually is.
This is exactly what my experience has taught me.
Velocity is the key.
My Merkel came with the below regulation target.
It was regulated at 100m for RWS 293 grain UNI projectiles.
If I drive those projectiles at the same velocity they mirror the factory target perfectly.
However if I shoot 320 grain Woodleighs at the same velocity , regulation is also very good.
I am extremely happy with how my double was regulated.
It just goes to show you don’t need to spend a $100,000, to get a properly regulated double rifle.