I have recently bought a Gibbs rifle built on a Fields falling block action. It is chambered for 16g shotgun shells but was definitely a rifle. The sights have been removed but the rest of the rifle appears to be in good condition. Despite this the rifle obviously has no collectors value. I would therefore like to rebarrel it and build some sort of a custom rifle with the action. I do have concerns regarding the caliber- can the action withstand modern pressures and as the action is quite bulky, I feel it needs to be quite a substancial case. I am leaning towards a 45-70 but will appreciate some thoughts and advice from all of you. I do have some pics available but don't know how to post. If I can send them to someone who would be so kind as to post them, I will appreciate it.
