Hey Mark. Welcome to the site! Are you new to handgun hunting?
These guys are a wealth of info & I'm sure you will get lots of suggestions, but a little more info might help narrow it down. Here's my choices. For a shorter barreled (6" & less)gun with iron sights I like a pancake holster from a company called "Simply Rugged". The name says it all.
http://www.simplyrugged.com/I carry a custon 4.5" Blackhawk in 41 mag in mine & it's extremely comfortable either strongside or crossdraw & even with no retention strap I've never had the gun move in the holster, even getting in & out of canoes & hiking rough country. Price is fair too.
For longer barreled guns & scoped guns I've tried quite a few different options & right now am using the "Pistol Packaging" Bandito rig for my 8&3/8 mod 29 with a red dot sight.
http://www.pistolpackaging.com/Works great. Not sure it's the end all solution, but it's the best I've tried. May try a sling sometime.
By the way, I'm a pastor & the verses you have in your signature line are the primary passage I use for all maritial counseling!
Welcome brother!!!