AFAIK, yes the operating pressure is the same or slightly lower. You aren't changing the reg pressures, just the volume of the dump chamber, but i think there is a mathematical relationship between preasure & volume, but i dont know it.
-
-
The pressure impulse from a magic box that actually pushes behind the ball is about the same as with a regular valve, but the trailing air pressure lasts longer because of the increased volume. Given that the pressure impulse is about the same, the operating pressure to provide the amount of force to develop the required velocity is also about the same. The pressure with a magic box is a tiny bit lower than the standard mag, but not enough to really notice or make a difference given that everything else is the same.
Nobody: The pressure volume relationship is P1V1nRT = P2V2nRT. The values of nRT (number of moles, gas constant, temperature) are constant given that you are using the same type of gas at the same temperature. Therefore P1V1 = P2V2. However, this equation only represents the starting pressure in the chamber under ideal conditions if all the air could be delivered instantaneaously and not the pressure applied behind the ball because of the bolt stem restriction in the air delivery to the ball.Except for the Automag in front, its usually the man behind the equipment that counts.Comment
-
When you have the valve removed from the body, look at how the trigger rod moves to allow the sear to move from the forward reset position to a point where the sear just clears the body? That movement will give you an idea what you are dealing with from a visual standpoint.Except for the Automag in front, its usually the man behind the equipment that counts.Comment
-
there you go. the trigger rod is closer to the pivot point on benchmark frames compared to an agd frame, which results in an easier, but longer-travel trigger pull as you have more leverage. it's opposite on the agd frames; shorter but stiffer trigger pull because the rod is farther away from the trigger's pivot point.
no issues here.Comment
-
But I own a Benchmark frame and am extremely familiar with how they normally feel. My classic mag with a Benchmark feels NOTHING like his magic box mag: soft and long pull vs. stiff and still pretty short pull. I hear what you're saying about the pivot point, and that's a good point (badum tsst), but it's still a very short pull on my benchy'd gun. I don't have to pull the trigger a full quarter inch on my gun before it fires. With his gun, you do. I'll definitely try an AGD frame on his gun next time I see him, though.Last edited by ghost flanker; 10-17-2016, 10:50 AM.Comment
-
athomas,
I'll be sure to do that next time I see him. Maybe this Sunday. Thanks, buddy.Comment
-
Cyco-Dude, going_home, and athomas,
I have to say you guys were on point about the frame being the culprit. I was mistaken about the make of the frame though; it's a Kapp, not a Benchmark.
Anyway, my friend put an AGD pot metal frame on it and said it shot nice and snappy. You guys were right. Probably due to very close proximity between the trigger rod and the trigger pivot point exactly how Cyco-Dude described. I appreciate all the help.
Comment
-
keep in mind it's not bad, it's just different. kapp frames (kapp groovy?) with some hogue palm-swell grips are pretty comfy too!Cyco-Dude, going_home, and athomas,
I have to say you guys were on point about the frame being the culprit. I was mistaken about the make of the frame though; it's a Kapp, not a Benchmark. Anyway, my friend put an AGD pot metal frame on it and said it shot nice and snappy. You guys were right. Probably due to very close proximity between the trigger rod and the trigger pivot point exactly how Cyco-Dude described. I appreciate all the help.Comment
-
If you like the frame otherwise, I have filled in the back side of a benchmark trigger pocket with solder to bring the pocket back to the AGD shape. You could probably use some red loctite on a tiny half round of brass back there also. After I got the trigger setup, I still didn't like playing with the shape and width of the frame, so it turned out as more of an experiment.Comment
Comment