Rich at Shebear has something similar, but I believe it’s out to 50yds!!
Registered User
Rich at Shebear has something similar, but I believe it’s out to 50yds!!
Holder of nine NSRA gold medals
Yes we had a tube, about 400mm diameter, made from plastic barrels that we cut the bottoms off. The plastic barrels had a top collar where the lid fits, and we made the holes in the base the right size so that the collar of one barrel was a good fit in the next barrel's "hole in the bottom"! Carry this on for many barrels and you have a tube.
As it happens that setup ( which went to 42 yards and was going to be extended ) has been decommissioned as we are currently building a new facility giving four covered lanes to 25 metres and two full height lanes to 50 metres that will be wind-free under most conditions.
To the OP, the first time you shoot in your tube, don't be startled by the noise.
Our barrels being blue, it meant there was only blue light (short wavelength) to illuminate the target card. Good FT scopes would rangefind the target card at 40 yards whereas we knew the card was at a measured distance of 42 yards. It just shows how you can rangefind a target differently in different light conditions.
www.shebbearshooters.co.uk. Ask for Rich and try the coffee
Registered User
Can I just ask why the tunnel? Noise or wind or safety?
I imagine it will echo and resonate without some sound deadening liner?
What do the motors do? Target changers?
Registered User
The tube we have bought is bright and shiny galvanised steel, so lighting is going to give no problems.
The tunnel will be lagged on the out side to protect against sound and radiating heat.
The motors are used for the whizzer targets.
I am using conduit tube for windless condition, sound, safety, privacy etc.
I've thought the whole lot through and there is a reason why for everything, even having the range in the first place.
Last edited by MrChipShoulder; 06-09-2018 at 05:00 PM.
Holder of nine NSRA gold medals
You'll have a very hard and reflective interior and with top and bottom parallel and sides parallel. This all leans towards a potential noise problem, IMHO. It would be prudent to allow access to the inside once it's assembled; if nothing else put something down the tube that breaks up the continuous flat surfaces.
Our plastic barrel tube mentioned above had five 45 gallon steel drums joined end to end and with the tops and bottoms removed to form the entry part where the shooter was positioned. We soon had to stick some old carpet on the inside of the oil drums.
www.shebbearshooters.co.uk. Ask for Rich and try the coffee
Registered User
As you say, it will be a bit loud as is. The out side lagging will take care of the top and sides. The floor will have some thin white carpet on it on the inside. Don't worry, it's designed in my head. I may even put a very small extractor fan at the back on the bottom for a little through ventilation.Originally Posted by Rich
Guest
I used to lag duct work in building to kill the noise (not as loud as an airgun shooting through it mind you)
we used glass wool that had a ali foil on the outside .
like this http://www.rock-wool-insulation.com/...s-blanket.html
Admin Team
For those who can't get a measured 10M range at home, air rifle and pistol cards scaled to 6 yards are also available.
Banned
Are they scaled or are they 6yd targets?For those who can't get a measured 10M range at home, air rifle and pistol cards scaled to 6 yards are also available.
The paper 6yd targets used for comps only scale the black, but the 10 is a lot easier to hit. I used to shoot 550av ex 600 integer at 10m, far from stunning... at 6yd I used to shoot 590+
Admin Team
I dunno, Rob - is my answer to that.
As you allude to, they are "Official NSRA 6yrd Targets" (Air 7 and Air 8 on the NSRA shop website).
Are they easier? I'm not sure, although I'm sure I've read that some folks have found the opposite!?
Bob (Zooma) may be able to answer, as he runs the excellent MPL 6 yard postal comps' on here.
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