Post by ctres on Jul 18, 2013 21:50:11 GMT -5
I agree with everything that shadow said, but I'd like to make one small correction. The inertia of a heavier bb in the direction of its path is greater than that of a lighter bb. In fact, the inertia of an object does not ever change. Energy on the other hand does change with bb weight. One might assume that a heavier bb always has less energy than a lighter one when fired from the same gun, since kinetic energy=.5mv^2. However, a heavier bb can actually have more energy than a lighter one when fired from the same gun. This is closely related to the points I made earlier about cylinder to barrel ratios and is commonly known as energy creep. If you were to build an aeg with a full cylinder, 130 spring, and a 200mm barrel and then chrono it with .12s and .40s and then calculate the joule output you would likely find that the output for the .40 would be a lot higher. I believe this is because the .12 leaves the barrel before the piston finishes its full stroke whereas the .40 allows the pressure to build for a lot longer (still talking miliseconds here) and makes use of the full cylinder volume. This is why I said that for optimal energy output you want to match to the bb you intend to use, not just what you chrono with.
As for what I would say to the OP, you have to think of the gun as an entire system, each part has its place, but there is not one end-all be-all solution. As for what you should do, I would say that there are three main things that contribute to accuracy and range: the barrel, the hop up, and the gun's overall airseal. As others have said, a barrel and hop up bucking will be the easiest to install and usually give the most quantifiable results. Air seal may be quite decent on your gun in its stock form, or it could be awful. There is no way to know unless you crack it open and test. I would say start witha prommy and a nice bucking like the prommy purple or systema. If you are happy with it, then stop. If you aren't, then start chasing down air leaks if you are confident in your tech skills.
As for what I would say to the OP, you have to think of the gun as an entire system, each part has its place, but there is not one end-all be-all solution. As for what you should do, I would say that there are three main things that contribute to accuracy and range: the barrel, the hop up, and the gun's overall airseal. As others have said, a barrel and hop up bucking will be the easiest to install and usually give the most quantifiable results. Air seal may be quite decent on your gun in its stock form, or it could be awful. There is no way to know unless you crack it open and test. I would say start witha prommy and a nice bucking like the prommy purple or systema. If you are happy with it, then stop. If you aren't, then start chasing down air leaks if you are confident in your tech skills.
