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Posted: 9/1/2007 9:45:28 AM EDT
| In terms of a semi auto rifle....Wont the heavy buffers do the same thing as the CWS but cheaper? theoretically speaking.... |
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One of the biggest differences I see is that the CWS allows you the choice of 2 different weights in one package. Might save some people from having to buy two buffers, say for instance if their first buffer choice was still too light, requiring them to then buy an even heavier buffer (or vice versa). Also the CWS is a little easier to change weights than it is to change buffers, though not by a tremendous amount. I also believe having the additional weight as far forward as possible may translate into a smoother, more efficient operation. This last point is strictly a guess on my part, as I have no data to either prove, or disprove the point. Maybe one of you engineering types could shed some light on this theory. With the increased dwell time, the fired brass does remain much cleaner after firing, though this is one or the lesser benefits of the CWS IMHO. |
Actually, three different weights: (1) carrier alone, (2) carrier + steel insert or (3) carrier + tungsten insert. Not exactly sure how this works, but I also understand that with the increased lockup time, primers don't leak as much. Not sure I understand that entirely since the carrier doesn't affect pressure, it simply delays unlocking a tad, but maybe that in and of itself keeps the primer sealed up better, not really sure. Tubbs does include pictures though of caseheads that used identical loads and teh CWS system laod has a nice, rounded primer while the other has a leaky primer. Could be a real benefit or could just be a situation where the cases were different lots, new vs previously fired, whatever. |
| It is simple physics. A heavier buffer has more inertia and will accelerate slower. This delays unlock rate (how far the bolt moves over time). A heavy hammer spring is also significant in the AR unlock cycle. A heavy buffer spring (to a lessor extent) also slows things down. These and any other factors which retard bolt movement like a heavy bolt carrier allow pressure to dissipate before the cartridge base is exposed to ambient pressure. |
| according to the guys on another forum. the cws along with the flatwire spring from superior shooting systems increases the velocity of the bullet and had more consistent shot placement by having more gas going behind the bullet and not being used early to retract the bolt carrier system. they had good enough tests that i bought the set 2 weeks ago and will find out this weekend if it makes a difference in my rifles. |
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