Well, we all know the scrutiny backpacks are gonna command now since Boston.
In the distant past, I have ridden a dual sport in the mountains with a .22 rifle strapped to the side of a pack, exposed. Not going there anymore! At least in CA. I have recently taken the motorcycle to a local shooting spot of mine on some backcountry roads with my OD voodoo Tac bag with a full sized .308 inside worn as a "backpack". I passed a Sheriff going the opposite way and he gave me a long hard look, for all I know, he did end up turning around, however, I was super close to my house and he probably didn't see me turn off. So now what?
My requirements are the following...
1. Completely out of sight and out of mind... hidden in plain view.
2. crash protection. If I low side at moderate speed or worse, I don't want my rifle to sustain any damage, If I am injured, so be it, but a damaged rifle would add insult to injury.
I decided I am going to have a rifle purpose built with a 20 inch barrel and a folding stock. This might allow the use of non "tactical" backpacks. Even gunslinger type packs won't work for me. I want NO attention paid to what I have in the pack. Camouflage and Od green are out.
I am currently looking for hard sided backpacks made for tennis rackets or guitars. I figure, this is the only reasonable way to do it...Hide it in plain sight. Ill let you know when I find something. BTW Ogio has some hard sided packs, I just don't think they are long enough.
If I still had my GS1200, I could lay it over the back seat transversely with the panniers attached, but I sold the bike. Option 2 is to make it look like a tent or something if your bike can support the attachment configuration.