Bit of an delayed update...
Rifle was thoroughly cleaned and carbon removed. Over the new year I had a few range sessions with the rifle. Tried some Remington 150gr factory ammo as well as my chosen 200gr Hornady Precision Hunter. My observations were, that from cold first and second shots with both ammo choices showed not stickiness in bolt at. If rifle was shot and allowed to cool between shots from there on, then there was no perceptible issue.
Now I did do a test where three shots were fired in close succession. The third shot of each type of ammo resulted in a sticky bolt for that respective round.
It seems that a warmed up rifle is the issue. Now this is not a goat gun, so I'm unlikely to fire more than one or two rounds in a hunting situation, so I'm thinking that what I am witnessing isn't such of a problem in reality but appreciate any thoughts on the above.
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