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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR wives tales
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<blockquote data-quote="MSURunner" data-source="post: 2981318" data-attributes="member: 102961"><p>I think you're saying a lot of what I was, just differently. You are using a full power load, so if you lightened your reciprocating mass any, your cyclic rate would start becoming too fast or you would have to turn the gas down to a point of not getting consistent operation.</p><p></p><p>In lightening your hammer, you decreased your lock time, by a small margin. Increased cyclic rate is essentially doing the same thing with the "lock time" for the loading operation. There is only so far that it can go, though, before it becomes too fast and you don't have enough dwell time for the chamber to release to the spent cartridge. Your cyclic rate works for your rifle with your ammunition. Throw in a lower power load and you won't have the cyclic rate to operate the system and you'll now need to increase the cyclic rate. This is also based on a static gas port location. Changing this can change that dwell time more significantly than a lot of things, but people obviously can't change that after the rifle is built. I doubt the lightened hammer was the cause of the double tap, but more likely, incorrect geometry in the sear/disconnector from the polishing. Neither here, nor there... </p><p></p><p>Point being, if you want to decrease recoil, you should either decrease the recoil power of the load (and tune accordingly), or add a muzzle device.</p></blockquote><p></p>
[QUOTE="MSURunner, post: 2981318, member: 102961"] I think you're saying a lot of what I was, just differently. You are using a full power load, so if you lightened your reciprocating mass any, your cyclic rate would start becoming too fast or you would have to turn the gas down to a point of not getting consistent operation. In lightening your hammer, you decreased your lock time, by a small margin. Increased cyclic rate is essentially doing the same thing with the "lock time" for the loading operation. There is only so far that it can go, though, before it becomes too fast and you don't have enough dwell time for the chamber to release to the spent cartridge. Your cyclic rate works for your rifle with your ammunition. Throw in a lower power load and you won't have the cyclic rate to operate the system and you'll now need to increase the cyclic rate. This is also based on a static gas port location. Changing this can change that dwell time more significantly than a lot of things, but people obviously can't change that after the rifle is built. I doubt the lightened hammer was the cause of the double tap, but more likely, incorrect geometry in the sear/disconnector from the polishing. Neither here, nor there... Point being, if you want to decrease recoil, you should either decrease the recoil power of the load (and tune accordingly), or add a muzzle device. [/QUOTE]
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AR15/10 Rifles
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