Re: Bubble level
I guess I view the bubble as also being a training device but it can be used as a crutch depending on how the shooter uses it. If it is used as a tool to double check when you think you have everything right then it can help you. Getting used to setting up the shot the way you think it needs to be then glancing up to see where that bubble is then I think it's a useful instrument. But if you use it to line up the shot instead of the other way around then you're not helping yourself to become a better long range shooter.
I still have them on both of my long range guns, I do try to line up and then glance up to see how well I've done and after a season of using them I feel I've improved that part of my game.
Yes they are cheap, some view them as a crutch and only an inexperienced shooter will use them but like any other part of your shooting machine, it's a tool that is useful and not to be viewed as something a novice would be using. On larger targets at distance a slight cant won't get you off the target but on a really small high value target at 1000 yards that small cant you might misjudge will get you a big goose egg.
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