alright dont write this off, im sure its possible...

what you need is a closed bolt mechanism, best to be manually operated so that the air pressure in the barrel is not lost until the ball is out of the barrel. the balls would have to be modified. i have this idea: you glue a small cylindrical piece of styrofoam or some other lightweight material to the back of the ball to give it in-flight stability. for a barrel im thinkin 30-40 in rifled. rifling would work because the gas pressure whould smush the styrofoam into the grooves, and lastly the valve would have to release a lower air pressure for a longer time so that it could have a longer range and still be near 300 fps. also, if the valve released a lot of air all at once, the ball would start to slow down by the time it was half way through the barrel, reducing range drastically. if this would work imagine playing woodsball games where yuo could actually shoot people accurately. that would be awesome. any other ideas/comments?

Firstly, before a flame fest starts, there technically is no such thing a a paintball "sniper". Next, a 30-40" barrel is ridiculous. You would use alot of air to push the ball out of the barrel, despite being "manually operated". I dont really see how modifying paintballs will help anything, but whatever.

I give it an A for effort.

usafpilot07 wrote: good lord, give it up, darur pwn'd you its been talked about so many times, and each time its been proved wrong, but if you can make it work, more power to you *cough* and its hard to believe a "genius" who uses the word "firstly"

firstly is a word: http://education.yahoo.com/reference/dictionary/entry/firstly - http://education.yahoo.com/reference/dictionary/entry/firstl y

did anyone say i was a genius?

he cant prove me wrong and i cant prove myself right. in order to do that i would need to build a prototype and test it. all i was doing was presenting some ideas i felt were not already mentioned in previous discussions. i already stated all i was saying was theoretical, because to say it was true would be lying because i never tested it and neither has darur. to say he pwned me is a little harsh because all he did was present some counter-ideas, and thats exactly why i posted this. but to say i was proven wrong is idiotic and shows little in the form of actual thinking.

Alright dude, This ball erm...I mean cylinder (which has been done, with little marketability) would have to come out of the barrel at about 300 fps. Rifling help with accuracy, (which Darur completely tore you apart with the wobble), not with distance.

They do however make paintballs with gelaten fins in the back. Again would need a specialized marker, thus noone would buy it.

And it helps to capitalized "I" and the begining of sentences. It also helps to brake the sentences up into smaller paragraphs.

It was a good thought, but you really should have conceted defeat.

patdh1028 wrote: alright dont write this off, im sure its possible... what you need is a closed bolt mechanism, best to be manually operated so that the air pressure in the barrel is not lost until the ball is out of the barrel. the balls would have to be modified. i have this idea: you glue a small cylindrical piece of styrofoam or some other lightweight material to the back of the ball to give it in-flight stability. for a barrel im thinkin 30-40 in rifled. rifling would work because the gas pressure whould smush the styrofoam into the grooves, and lastly the valve would have to release a lower air pressure for a longer time so that it could have a longer range and still be near 300 fps. also, if the valve released a lot of air all at once, the ball would start to slow down by the time it was half way through the barrel, reducing range drastically. if this would work imagine playing woodsball games where yuo could actually shoot people accurately. that would be awesome. any other ideas/comments?

this right here is enough evidence to know that there are snipers in paintball.  believe what you want though. 

a bolt system for a paintball marker would be awesome and i'd buy one now if there was a product like that. 

theres a lot of crackers in here watch yourself at all times.

hey guess what usafpilot: you get 0 points for not contributing to the conversation/arguement, you lose 50 points for not knowing that "firstly" is a word, and you lose another 50 for keeping score.

also, to reduce friction, lube the inside of the barrel and the rounds. i oil the inside of my teardrop with a cool squeegee i bought, and its way better for paint that doesnt quite match bore size or isnt perfectly circular. but in this case, it would be necessary to make the passage of the ball as easy as possible in order to retain some velocity and ball integrity. these two modifications i mentioned make the desired outcome much more possible. all the heat generated over this makes me want to make one myself...

anyone know where i can get a .68 caliber 30" rifled barrel?

I see you all are arguing and I don't care for any part of that. I have shot high power rifles for a while and have a good understanding of ballistics and thought I might give some input as far as comparing a paintball to a real rifle bullet.

For your barrel you might as well go with a 36" if you want to test 30". If you have the ability to machine, build a prototype. Find a 1/2">3/4" ID metal pipe, plum it up and drill it out to .68, and then polish the crap out of the bore. No easy tasks to make a straight and smooth barrel, much less spiral groove it.

The problem with getting your accurate flat shooting far-reaching paintball doesn't matter if you can get it rotating or not. (And yes, the shell would rotate and the paint would hold still)

The paintball has way to high of a drag coefficient because how wide it is. Most projectiles that are .50cal or wider are coming out of the muzzle at >2500fps to get to their distances, they are as wide and heavy as they are for energy. A paintball would get ripped apart from it's own wind resistance. 

If you know basic physics you understand that the only way your projectile is going to go further is if it is going faster, unless it is acted on by another force to give it lift (flatline backspin). Hold your marker level and get a stopwatch. No matter what you set your velocity to the ball is going to hit the ground at the same time. Gravity is constant (-9.8m/sec squared). The faster your ball is going the farther it will go, but it is always in the air the same amount of time.

But we all in paintball have a 300fps limit, so you need a slim (drag coefficient) and fast (distance), safe paintball (make it light). A standard load of.45ACP comes out of a 4" barrel at around a slow 880 fps to give you some relation, it is a very slow pistol bullet, but very heavy. I wonder what breaking the sound barrier would do to a paintball? They are too fragile to go faster then they already do, but if any more dense they would be unsafe. You need a frangible substance that disperses better then paint.

I think of accuracy with paintball guns like I would a smooth bore black powder gun. The dynamics are more similar then a rifled barrel.

What you want for accuracy is straight and smoothness, no friction.

As far as the scope, why? I know that the sight radius is short on a paint gun (I took my sight off and look down the barrel). If you cannot hit a pie pan @ 100 yards with iron sights then you don't deserve a scope, and you are definitely not going to be faster with it. I would put a good front sight on the tip of your barrel if amiability were paramount. It is at least a smaller target to have on your marker.

what ever happend to those paintball bullets. The ones that fired out of a real rifle. Like in Childs Play III? The did exsist for a couple of years but all the sudden disapeared.

Also. I was wondering something about that picture

Darur wrote: Psyrecx wrote: what ever happend to those paintball bullets. The ones that fired out of a real rifle. Like in Childs Play III? The did exsist for a couple of years but all the sudden disapeared.   I was killed because he didnt wear his neckguard once

Who?

My main question is this.

When you put the lightweight material to the back of the ball, it would have to be sturdy enough to grip the firling. Paintballs dont have enough weight to them to be able to offset the weight of this sabot that we've put on. At the velocity that you'd be shooting, there wouldnt be enough power to keep the heavier sabot from falling, dragging the shot down with it.  

Presuming you get it to come out at the same velocity, the extra mass of the sabot wouldn't pull it down faster. Remember Newton's apple and feather in a vacuum experiment?

What would happen is that the uniformity and symmetry would be lost in both the surface area and cross-sectional density. If the sabot stayed attached to the ball, and the ball wasn't destroyed in the acceleration, the projectile would tumble end over end, and since it's nonsymmetrical the wind resistance would play hell on its accuracy. 

Make a conical shaped paintball that is symmetric in shape and density. Sounds expensive.

Making the paintball take up more space will only slow it down by increasing the drag coefficient. You cannot boost the velocity unless you find a better material that is less dense then paint and will disperse more rapidly so that it is safe to shoot at higher velocity.

The Simunitions fatality was a Canadian soldier at Canadian Forces Base Petawawa. as stated, he didn't wear a neckguard, and a simunitions round caused falat damage to his neck. Not sure if it was a severed carotid artery or a crushed trachea.

I've used Simunitions in urban combat training. They're fun, and you can use the real weapons, but the masks are frickin' horrible. They should definitely sub-contract their safety gear out to V-Force or Dye. They fog up like you wouldn't beleive, have awful ventilation, and the eyes bulge out so far you simply cannot use the sights on your weapon. I prefer MILES gear, hands down.

Nicodemeus makes some good points about the physics of this, but listen to theoneillusion. Try it out somehow, and figure it out for yourself if it's a go or not. Best of luck to you. Anyone with the inclination to try something new gets my support, unless it's abysmally stupid or dangerous.

Darur wrote: Psyrecx wrote: what ever happens to those paintball bullets. The ones that fired out of a real rifle. Like in Childs Play III? The did exsist for a couple of years but all the sudden disapeared.   Simunitions, they still exist.  They are by no means safe.  One guy was killed because he didnt wear his neckguard once

ya and is @$$ of buddy shot him in the neck thats y!!!

they are safe i was in the can.force and i trained with Simunitions so let it go!!

Y do you think you know every thing the guy has a good point about the sniper round instead of making it of Styrofoam you make some flaps of the same stuff the ball is made of....... i guess (tought from the top of my head so its not the best)

Oh and before you tell people to learn ballistics you should finish kindergarden........you know to give you a bit of credibility!!

x-mo-x wrote: i was in the can.force and i trained with Simunitions

Hey, which unit were you with? Were you reg force or reserves?

usafpilot07 wrote: no no no, and for the sake of conversation, im  12th Regular Can.

If you are saying you are in the Canadian military, then why is your forum name Usafpilot? As in United States Air Force Pilot.

patdh1028 wrote: alright dont write this off, im sure its possible... what you need is a closed bolt mechanism,...

The closed bolt argument has already been made, its been proven by several companies and people on this very forum not to make any difference in accuracy or range on paintball markers. I also once believed the dream, but now I have come to see the truth.

yes i was with the inf. going for the sniping cours but it got all mixed up and i broke a knee so ill have to check my papers to find it out!

but if it helps my platoon was under sgt chouinard comand.

oh i remember its 129 2er22er but i was with de reg of hull  befor that on the reserve.