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Sight Extension Tubes
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30-05-2009 10:47am#1
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The downside is that it's another gadget to worry about, and you have to clean them (shotgun cleaning felts and the like seem to be recommended) or every so often you can get a nice afterburner effect as build-ups of particulate crud on the inside of the tube is ignited by the muzzle flash.
Like everything else, I'm certain that with enough training, they'll work.
And like everything else, I'm also certain that with enough training, anything will work
And without that training, nothing works. 
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The downside is that it's another gadget to worry about, and you have to clean them (shotgun cleaning felts and the like seem to be recommended) or every so often you can get a nice afterburner effect as build-ups of particulate crud on the inside of the tube is ignited by the muzzle flash.
Like everything else, I'm certain that with enough training, they'll work.
And like everything else, I'm also certain that with enough training, anything will work And without that training, nothing works.
I'm pretty much just trying to refine my hold, as there's no perceptible movement, and alignment is good, so if it tidied up a few of those bogey 9's around the edge, that would be worthwhile. Should do the trick for that from what I'm seeing. Was also going to change to a 22mm Centra Foresight in the same movement.0 -
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Not sure about barrel performance. A removable tube's just another variable you have to learn to set correctly - which isn't to say you can't do that, just that it's adding more time to your training
Way I figure it is this - to be good at anything (as in, an expert), you're looking at doing it over and over again, a set number of times. For argument's sake, lets say that to be an expert at 50m rifle, you need to fire 10,000 rounds (the number may not be 10,000, but that's not the point here).
That's not 10k rounds all fired willy-nilly. That's 10k rounds fired in a set shot routine. At the end of that, your shot routine should be utterly consistent.
Now, here's the rub - change that shot routine and you'll need to shoot it a number of times to re-develop that consistency and expertise. Maybe the number won't be 10,000, maybe you only need to fire 5,000 rounds this time. But nonetheless - you have to go fire them. Which means that if you have a "not perfect, but does the job" shot routine, changing it requires a significant degree of investment of time and training. It also means that if you've got a shot routine going, and you're not seeing the results after two or three matches, you've only shot 300 rounds or so - so you're not near the 10,000 number. Meaning that if you chop and change stuff every time you have a bad match, you might be doing more harm than good.
The way I think of it, and the way I was taught to think of it by Matt and Geoff, is that you get the basics right - zero position, sight alignment, sight picture, triggering. Get those right, go shoot ten thousand shots with them right, then worry about things like wind, light, batch testing ammo, headspace gauging, etc, etc, etc. those things earn you a point or two in a match (okay, with wind, a point or two in a shot in dodgy conditions - but if you just shoot in the same conditions, it comes down to a few points in a match).
Zero, alignment, picture & triggering though - they get you 9 to 10 points per shot.
Now, if I could only manage to do so myself well enough that M&G didn't lose more hair when watching me shoot
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Sight extension tubes - the pros and cons:
Pros- Increases 'wobble' , so improves your hold.
- Makes rearsight adjustment clicks slightly finer
- Can improve your foresight clarity
- Can slow down sighting in process as attachment can be variable.
- Foresight becomes smaller and harder to centre.
- Foresight aperture diameter needs to increase.
- Increased 'sail' area so rifle becomes more unstable in wind.
- Can affect visibilty of foresight depending on eyesight.
- Can adversely affect recoil characteristics of rifle.
I think that covers everything.0 - Increases 'wobble'
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