When I hike with a pack I use the Wilderness Safe Packer Holster . It was made for the High Angle Rescue crowd and goes really good with the pack. It looks like just another piece of outdoor gear. For belt carry I use the Galco #FL1058 on my GP100 4? but being a lefty I am sure the number is one or two off from what a right handed person would need.
Dillon Precision makes pretty good leather I use their revolver ammo pouch and Bianchi Speed Strips with all my revolvers.
Hope this gives you a couple of ideas!!

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