I'm writing a paper for an English class. I’m comparing two designs. I chose to compare and contrast open and closed bolt designs. I'm using this post as an interview source. If anyone wants to help me, please list the benefits and drawbacks of using of each, or compare and contrast the two. Which one would you chose or recommend? Why? Are you more loyal to one design? What do you like that made you loyal? I am not just talking about performance. If you like a cocker because of the sound, please tell me.
I’m just looking for "the paintball community's" opinions listed in an orderly manner. The will be used as a cited source, so please, no spamming my thread. I tried this unsuccessfully with a different topic. I’ve changed my mind, and I’m hoping this works out better.
Most experienced paintball players have spent time around both. If you don’t know what I am talking about, please don’t post.
Thanks for your time. Your help is appreciated!
-chigger
Warpig already did an anaylisis on the two operating types and came to the conclusion that neither offers much of an advantage or difference over one or the other.
Closed bolt markers are suposed to shoot flatter straighter and farther which we now know is largely not true. Closed bolt is slightly slower since it has to allow time to open the breach let a ball fall in close the breach then fire before a cycle is complete where as in an open bolt, the bolt pushes the chambered ball out of the breech while directing a burst of air into the ball sending it out of the barrel. Closed bolt offers the advantage that when you fire there isnt a bolt slamming into a the ball which in theory causes less deformation of the ball when fireing leading to the better accuracy etc claims. Closed bolt markers require that you probably size the bore of your barrel to prevent rollouts thus properly set up closed bolt markers are generally very accurate but not really because they are closed bolt but because the design demands close attention be paid to the barrel.
Open bolt is faster for the before mentioned reasons, it is suposed to be less acurate although we know that to not be true. Open bolt offers nothing over closed bolt other than speed and maybe a few other small things.
They are tow operating types that although are oposite in resting position really offer no noticeable difference between either, i personally just like closed bolt over open but thats not so much performance wise as it is nostalgia and other irellavant factors
Warpig already did an anaylisis on the two operating types and came to the conclusion that neither offers much of an advantage or difference over one or the other.
First, thanks for your reply, I hope you dont mind me quoting you in my paper. I love the sound and feel of a cocker too. Second, The warpig test only tested accuracy, and it tested this on the stingray design. The army still claims that open bolts are less accurate, but I have not discovered why. Theres still many other areas to compare the two. Kick/recoil, sound, feel, rate of fire...
Im aware of that although i think warpigs test may have been slighlty skewed and the results would have been better if they came from a higher quality gun. When you reffer to the army, are you reffering to the simunitions or actual firearms ? In firearms themselves there probably is a distinct advantage that closed bolt gives because the round is completley chambered when dischraged so there is no moving mass aside from the bullet leaving the barrel and since the chamber is sealed, less of a sound signature.
In theroy, at slow firing speeds, the closed bolt should be more consistent since the ball comes to a rest before it's fired, instead of being slammed forward and instantly fired. Of course this is at a really slow firing speed, less then 1 bps, and at any real speed that advantage would be gone since the ball wouldn't have time to rest. That's all I got that shot hasn't already mentioned.
Yep, thats why you dont see very many closed bolt markers on the tournament scene or in general any more, because any advatage closed bolt offered over open is no longer noticeable although i still love and play with cockers frequently.
I love closed you can stick you face so much closer. Ive always felt they have a little less kick, but I also feel that open has more of paintball shot feeling. Not sure why just preferance.
Yea, people often compare the two. Which up to a point is fine because they share the same basic similaritys. However things like rifleing dont affect paintball ballistics because of the nature of the round being fired and phyiscs so comparing real firearms to paintball markers isnt the way to go if youre looking for a fair comparison, although the militarys "simunitions" which are basically paintball bullets intriuge me because rifleing does work for them. Iv'e been shot by one before, living so close to a Marine training center, an airforce base, and an army fort. Simunitions hurt so much more than paintballs, i can see why they train you to get shot with them.
i used to love closed bolt, untill i realized that the accuract isnt all that much better, though there is less kick than most guns, after shooting mags, theres about the same accuracy, recoil, and speed imo
The reason closed bolts have fell out of popularity is there more complicated then an open bolt, and everybody is hung up on cycling speed. It also doesn't help that the only popular closed bolt guns still in production are cockers, and are extremely complicated compared to your average open bolt.
The best comparision of open/closed bolt is the AKA Excalibur and Viking. They are practically the same gun, the only differnce is one is open bolt(Viking) and one closed bolt(Excal). The Viking has a higher cycling speed, and was cheaper due to the design(one noid instead of 2). The Excal has less kick and cycles slower, but those are the only 2 real differnces.
In firearms themselves there probably is a distinct advantage that closed bolt gives because the round is completley chambered when dischraged so there is no moving mass aside from the bullet leaving the barrel and since the chamber is sealed, less of a sound signature.
I think your compairing bolt action to semi automatic rather than closed bolt to open bolt in that comparison.
The recipricating mass in today's markers is so little that I dout that you will notice A diffrence in kick between a closed bolt and open bolt marker. The the new tech-t l7 bolt for the ion weighs in at 8.6 grams. thats just a little less than 3 paintballs.
If anything closed bolts are inferior to open bolt markers. I mean you have to make sure you have a good paint-to-bore match otherwise you get roll outs, Also they are usually more complex markers compaired to open bolt markers.
Closed bolt markers are cool and all, but open bolt are technecly supirior.
What about the regulation of the air? Did you take that into account? 'Cause varying velocities for each shot on the Automag's part would have accounted for the discrepancy in accuracy, if one were relying on it's own built-in regulator.
Did you chrono each shot from each marker, and if so, what were the value ranges?
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The lies about closed bolt markers are simply there for MARKETING PURPOSES.
Closed bolt markers are actually at a DISADVANTAGE to open bolt markers because they rely on the barrel to prevent paint from rolling out so a snug fitting match is REQUIRED. Open bolt markers do not have this problem.
Quote:
Originally Posted by cyrus-the-virus90
Diffrent guns, diffrent guns will yeild diffrent accuracy. good attemt though
Nope.
Quote:
Originally Posted by Blazestorm2
Cocker had closer groupings
Assuming all variables were the same... Nope. It's all in your mind.
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If ANY of you think closed bolt markers throw paint differently than open bolt markers than you do NOT know how paintball markers work and should not be posting in this thread.
ALL paintball markers send a burst of air behind the ball to propel it out of the barrel when the bolt is FORWARD and the paintball is IN THE BARREL. The only difference between the two methods of operation has to do when the marker is doing NOTHING, which equates to doing the same thing as sitting on the bench.
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If someone "swears" a specific marker with one operation is better than the other on the field it is because of a factor OUTSIDE OF THE BOLT POSITION. The major factors (NEVER bolt position), outside of user influence, are: paint quality, regulator consistency and barrel quality/cleanliness.
I love the sound and feel of a cocker too. Second, The warpig test only tested accuracy, and it tested this on the stingray design. The army still claims that open bolts are less accurate, but I have not discovered why. Theres still many other areas to compare the two. Kick/recoil, sound, feel, rate of fire...
