Originally Posted by Paper_Cut
Forget everything you know about guns, none of it applies to paintball markers.
Rifled barrels are designed for a heavy, solid, shaped projectile. Putting a spin on a paintball will just make it curve to one direction or another, making accuracy even worse. It curves because when spinning the outside shell will be spinning faster than the paint inside, which will make it unstable.
Not completely true. The principles in real firearms about shot propulsion and why a longer barrel gives you greater range, yes but some of the theories on round shot vs shapped shot are applicable.
Look at the improvements in accurcy between round shot of standard muskets (which at .50 cal are fairly close in size to a paintball) and the Minie Ball. Those same lessons can be applied to paintball and First Stike rounds.
If it is the difference in weight between the spinning rates of the fill vs the shell that makes a paintball curve, then why does a baseball curve when a pitcher throws a curveball? There is no "fill" in a baseball to cause this instability you mention with paintballs. Also, why can an Apex barrel curve a shot predicatably?
The reason isn't found inside the ball, but outside the ball. It's aerodynamics. Riffled barrels are designed to impart gyroscopic stability on the round. However, because a paintball is round, it doesn't need to be gyroscopicly stabilied. A First Strike round, which is not round, does. If you were to fire a First Strike round without the fins (note the fins produce a slight bit of drag but also are angled to spin the round) the round would tumble end over end in flight because it is aerodynamically unstable. The rotational "spiral" spin the fins (and a riffled barrel) put on the ball help to gyroscopically stabilize it and keep it oriented in flight to benefit from its more aerodynamic shape.
Studies have shown that riffled barrel DO improve First Stirike accuracy though no one has proven why. The standing hypothosis is that when a First Strike round leaves a smooth barrel, it is not spinning at its optimal rate and, as I mentioned, it will want to tumble or wobble in the air until the fins bring it up to its ideal rotational speed. This is why at short ranges, there is very little accuracy benefit to FS rounds over regular rounds (under 100'). Beyond this distance, FS rounds are far superior to regular paint at maintaining accuracy. With Riffled barrels, the accuracy level of FS jump at all ranges as this "wobble" upon exiting the barrel does not seem to exist. The hypothosis is that the riffling in the barrel, even with a generous slip rate, gets the round spinning at its optimal rate before it leaves the barrel thus giving it the proper stabilization as soon as it leaves the muzzle.
As for the OPs question, I have found mixed results when using the LAPCO FSR .683 riffled barrel. Since the regular paint I had to shoot through it was of widly varying size (.679-.694) I found that some paint shot through it fine while other paint broke inside the barrel. Without verification, I assume that the ones that broke in the barrel were on the larger end of the paint's size spectrum. I have wanted to get a Hammerhead barrel with .686 and .688 sizers and try shooting both FS and regular paint through them to see how they work as others have found good results with this barrel.
From what I have heard though, you do see a slight dip in long range regular paintball accuracy with the Hammerhead riffled barrels. Short to mid range is relatively unaffected. Again, this is only what I've heard from some users who shot both regular and RS rounds through the barrel.
The SAR-12 is a Hammerhead 20" barrel with sizers.
Originally Posted by Righte
I'm gonna be honest with you, the SAR 12 is just about the silliest thing I've seen. Bulky, bolt action "Sniper rifle" in paintball?
Do you want to look silly or play paintball? I'm giving you real advise. You'll play with it a few times and then wonder why you bought it, and for $1000 bucks you got quite a few extremely nice, practical
paintball guns on the table of your options.
In a way, I agree with Righte. The SAR-12 is a great looking marker and, if the game is right, could be effective. However, the game that the SAR-12 is built for we be a game more along the lines of a low cap airsoft game where all the paintball guns would be mag fed and only guns like the SAR-12 could use First Strike rounds giving the SAR-12 an advantage with range and accuracy.
Unfortunately, games like this currently do not exist in paintball. There are magfed markers and magfed only games but these games allow any gun that can shoot First Strikes to do so. In a regular paintball game, the SAR-12 is very overmatched as the fields are smaller and trying to find a place on the field that provides signifigant cover at long range against fast firing markers is very slim. I'd pick up a Hammer 7 and try that for a while. First Strike compatible, you can put a Hammer Head riffled barrel on it, pump action so you still have that same feelt to it, but much smaller and lighter, I would see how you like playing that style for a while with a cheaper gun and, if you like it, then invest in the SAR-12.