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Scope Accuracy

A place to ask general spud cannon related questions.
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Scope Accuracy

Unread postAuthor: Clarke » Tue Jun 09, 2009 7:39 pm

Hi all, im new to the forum and just like to say Gday.

I have recently made a 1/2" QEV .22 Pneumatic pellet gun (still being fine tuned) which im carving the stock for at the moment and im procrastinating about sights. It's accurate at a distance of 20m when setup in a vice shooting 6mm BB's at a 20x20cm target but due to the stupid shape of the QEV (Parker) its very awkward trying to aim down the barrel.

So Im tring to choose between a 4x20 scope, military 3x mag red dot sight or the good old iron sights (steering towards the first 2).

So my question, are scopes purely cosmetic or do they make a difference?

I would be happy to have a plinker that could hit a coke can at a distance of 20-30m. I will be shooting mostly .22 pellets and a couple of 6mm metal BBs so that should take the irregularitys out of ammunition.

Edit: I just thought about a laser sight aswell.

Any info is greatly appreciated,
Cheers, Clarke
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Unread postAuthor: hi » Tue Jun 09, 2009 7:52 pm

Depending on how comfortable the stock is and what tools you have available, you might be able to make some simple sights like the ones on the m16. It had the same problem, sights on top of the receiver and barrel were too low, so that is why they are raised a little bit.

A scope could be used for accuracy if it is securely fastened to the gun. maybe you could silver solder a cheap rail to it
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Unread postAuthor: boom_o_matic_2.0 » Tue Jun 09, 2009 8:34 pm

it just depends on how accurate the gun itself is. I dont know about any one else but I wouldn't put a scope on a black powder rifle because of their horrible inaccuracy. Thats kind of why in the revolutionary war they were told not to shoot til you see the whites of their eyes. if it was up to me I would just put simple adjustable iron sights on it unless its extremely accurate. then I"d put a scope on it.
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Unread postAuthor: jonnyboy » Tue Jun 09, 2009 9:24 pm

I wouldn't scope it, the gun is probably not consistent enough at 20m to even show up every time on a 20mm objective much less hit the intersection of the cross hairs.

I would probably just stick a laser on it they seem to foot the bill for most of the small caliber guns on here.
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Unread postAuthor: jackssmirkingrevenge » Tue Jun 09, 2009 11:30 pm

Red dot sounds about right to me, a lot more fun for plinking :)
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Unread postAuthor: hi » Tue Jun 09, 2009 11:37 pm

boom_o_matic_2.0 wrote:it just depends on how accurate the gun itself is. I dont know about any one else but I wouldn't put a scope on a black powder rifle because of their horrible inaccuracy. Thats kind of why in the revolutionary war they were told not to shoot til you see the whites of their eyes. if it was up to me I would just put simple adjustable iron sights on it unless its extremely accurate. then I"d put a scope on it.


sorry to be off topic, but that's not true. modern black powder rifles are very accurate. old smooth bores were not very accurate, but a modern day black powder rifles are capable of being as accurate as center fire rifles. I shoot black powder guns and you would be amazed at how advanced they are.
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Unread postAuthor: thedeathofall » Tue Jun 09, 2009 11:40 pm

Im with Jack. Dot sights give a great field of view, and can still be accurate out to 50m+. They are kind of like ball sights on shotguns. They let you see a lot, yet you still know what to point at.
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Unread postAuthor: jackssmirkingrevenge » Tue Jun 09, 2009 11:43 pm

hi wrote:sorry to be off topic, but that's not true. modern black powder rifles are very accurate. old smooth bores were not very accurate, but a modern day black powder rifles are capable of being as accurate as center fire rifles.


He was probably referring to smoothbore muskets which had ammunition made significantly smaller than the bore to make loading easier in the heat of battle with a fouled gun. There is no doubt that the introduction of the black powder rifle was a quantum leap in accuracy and indeed, it allowed the proper military sniper to be born.
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Unread postAuthor: boom_o_matic_2.0 » Wed Jun 10, 2009 9:47 am

hi wrote:
boom_o_matic_2.0 wrote:it just depends on how accurate the gun itself is. I dont know about any one else but I wouldn't put a scope on a black powder rifle because of their horrible inaccuracy. Thats kind of why in the revolutionary war they were told not to shoot til you see the whites of their eyes. if it was up to me I would just put simple adjustable iron sights on it unless its extremely accurate. then I"d put a scope on it.


sorry to be off topic, but that's not true. modern black powder rifles are very accurate. old smooth bores were not very accurate, but a modern day black powder rifles are capable of being as accurate as center fire rifles. I shoot black powder guns and you would be amazed at how advanced they are.


I was talking about the smooth bore rifles. I dont think it matters but the only experiance I"ve had is a flint lock and it had terrible accuracy. I'm a pretty good shot and I couldnt hit anything with it.
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Unread postAuthor: Clarke » Wed Jun 10, 2009 6:28 pm

So basically most pneumatics with scopes on this site are totally cosmetic and serve no purpose?
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Unread postAuthor: Technician1002 » Wed Jun 10, 2009 6:36 pm

Clarke wrote:So basically most pneumatics with scopes on this site are totally cosmetic and serve no purpose?


It depends on the shape of the projectile and the speed. High speed round balls fly reasonably straight for a while. Spuds and other projectiles are known for their tendency to take a wild curve off in the distance. It's part of the fun. You will notice it when you start making high speed mashed potatoes.
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Unread postAuthor: Clarke » Wed Jun 10, 2009 7:27 pm

No this gun isnt going to shootspuds. I found at 100 psi this gun liquifies spud projectiles within 1-2 meters after leaving the barrel because its so small. I will be running around 250-300 psi and will be shooting .22 Gamo and beeman airifle pellets.
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