Yeah i also have a bad back and I load big guns quite easily since proper loading technique puts zero strain on your back actually
. And I struggled the first time I went diving to load the gun, on my second dive I was loading a 1.2m gun with no issues. Just takes some practice, A good idea though if you have back problems is to not carry all the weight on your weight belt but try and distribute it with a back weight harness system or weight jacket. It spreads the load more evenly and doesn't affect your back like a single belt does on a long dive. Anyhoo hope you get it right and happy hunting.
