Thanks for the advice and pointers, i eventually bought a Vorn pack, expensive but good quality, didn’t like it a bit, although it came close to what i wanted, what it did show me is that unless you are hiking miles and need to carry your rifle and not use it in a hurry then almost all the packs will do the job, i had some rose-tinted image of a comfy pack that held my rifle unobtrusively yet allowed me to easily deploy it as needed, but i don’t think this exists apart from in YouTube video’s designed to ensnare us poor shooters, so ive gone back to an big old roesack and hump my rifle on a sling as per the last 40ish years…