It seems that all your decisions are based on the wallet, not alwasy the best way to go.
Post some links about the stuff you are looking at or post some stats on the make and model of that barrel at least.
Tell us what you are planning on using it for and at what ranges.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul