I use this for hiking and jogging.
https://www.hillpeoplegear.com/Products/CategoryID/1/ProductID/2.
You probably wont need to be the quickest draw in the west when faced with a forest nog or enraged methhead.
If you are lugging around a rifle just use a sling like a normal person and suck it up.
>>199992057% of all violent crimes are committed by 7% of the US population. Good thing is they are terrified of the woods and water.