1" Tube, 40-44mm Objective FT Scope

Older Bushnell Elite 4200. 6-24 w/ Mil-Dot reticle. Absolute monster of a scope. They aren't in production so you'd have to hunt for a used one.

I've also been very satisfied with my Hawke Airmax scopes with the 1" tubes. I have a 4-12 on my Pro Elite and it has had no issues whatsoever. The AMX reticle would be much better than a standard mil-dot for FT as well.
 
Older Bushnell Elite 4200. 6-24 w/ Mil-Dot reticle. Absolute monster of a scope. They aren't in production so you'd have to hunt for a used one.

I've also been very satisfied with my Hawke Airmax scopes with the 1" tubes. I have a 4-12 on my Pro Elite and it has had no issues whatsoever. The AMX reticle would be much better than a standard mil-dot for FT as well.
I have a few Hawkes with the AMX reticle and love them. If they came in a 16x I'd probably hop on it. I'll checkout that Bushnell too
 
I have a few Hawkes with the AMX reticle and love them. If they came in a 16x I'd probably hop on it. I'll checkout that Bushnell too
Any particular reason why you are set on a 1" tube? That is really limiting your options. If it's not an absolute necessity a 30mm really opens the door.

The Hawke Vantage comes in a 4-16x44 SF model w/ Half Mil Dot reticle. They use the same glass as the Airmax. Might be a good choice. Shouldn't be a problem finding a 3d printed enlarged sidewheel for ranging.
 
Any particularly reason why you are set on a 1" tube? That is really limiting your options. If it's not an absolute necessity a 30mm really opens the door.

The Hawke Vantage comes in a 4-16x44 SF model w/ Half Mil Dot reticle. They use the same glass as the Airmax. Might be a good choice. Shouldn't be a problem finding a 3d printed enlarged sidewheel for ranging.
Factory fixed mounting system on a Theoben that I don't want to modify