User Panel
Posted: 2/10/2024 8:14:48 PM EDT
Simple question..... Which one shoots flatter?
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[#1]
PMM
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[#2]
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[#3]
Have you thought about a spectre comp slide? Uses the 3.1" barrel but shoots considerably flatter than the short slide.
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[#4]
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[#5]
Originally Posted By wookie1562: Have you thought about a spectre comp slide? Uses the 3.1" barrel but shoots considerably flatter than the short slide. View Quote I think I am leaning toward the radian comp coming in q2. But I want to make sure it will shoot flatter than the macro or the spectre comp. I assume the radian comp will have a similar performance to the pmm. |
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[#6]
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[Last Edit: vandal]
[#7]
PMM shoots much flatter than Spectre Comp. PMM is a real (barrel) comp. Spectre Comp just being venting cuts in the slide is not nearly as effective.
I expect the Radian 365 Afterburner comp to be about the same as the PMM. Originally Posted By Shadow123: Do you the pmm shoot flatter and better than the spectre comp? View Quote |
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[#8]
Originally Posted By vandal: PMM shoots much flatter than Spectre Comp. PMM is a real (barrel) comp. Spectre Comp just being venting cuts in the slide is not nearly as effective. I expect the Radian 365 Afterburner comp to be about the same as the PMM. View Quote The spectre comp barrel is inset into the slide which is what enables the slide comp to function. If a screw on comp performs noticable better, it's likely due to the extra weight hanging on the end of the barrel rather than actual comp performance. |
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[#9]
Originally Posted By vandal: PMM shoots much flatter than Spectre Comp. PMM is a real (barrel) comp. Spectre Comp just being venting cuts in the slide is not nearly as effective. I expect the Radian 365 Afterburner comp to be about the same as the PMM. View Quote Are you running the stock triggers? |
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[#10]
I'm really pleased with the PMM comp I've got on an XL slide, it's on a Macro now,
I've shot identical XL's one with the cop, one without, significant difference, I've got 3000-3500 rd's through it with zero failures of any kind, the barrel's accurate. I can't speak to the Sig comp but, I'd take a 3.7" barrel to a 3.1, the PMM adds 1/2" to OAL, which I really don't notice. |
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[#11]
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[#12]
Originally Posted By wookie1562: The spectre comp barrel is inset into the slide which is what enables the slide comp to function. If a screw on comp performs noticable better, it's likely due to the extra weight hanging on the end of the barrel rather than actual comp performance. View Quote View All Quotes View All Quotes Originally Posted By wookie1562: Originally Posted By vandal: PMM shoots much flatter than Spectre Comp. PMM is a real (barrel) comp. Spectre Comp just being venting cuts in the slide is not nearly as effective. I expect the Radian 365 Afterburner comp to be about the same as the PMM. The spectre comp barrel is inset into the slide which is what enables the slide comp to function. If a screw on comp performs noticable better, it's likely due to the extra weight hanging on the end of the barrel rather than actual comp performance. |
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[#13]
Originally Posted By wookie1562: The spectre comp barrel is inset into the slide which is what enables the slide comp to function. If a screw on comp performs noticable better, it's likely due to the extra weight hanging on the end of the barrel rather than actual comp performance. View Quote Has there been any published testing done? |
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[#14]
Originally Posted By 96Ag: Is there enough gas to make the comp work before the slide unlocks? I saw a video of Tony Cowden saying the slide comps don't do anything due to this. Has there been any published testing done? View Quote View All Quotes View All Quotes Originally Posted By 96Ag: Originally Posted By wookie1562: The spectre comp barrel is inset into the slide which is what enables the slide comp to function. If a screw on comp performs noticable better, it's likely due to the extra weight hanging on the end of the barrel rather than actual comp performance. Has there been any published testing done? |
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[#15]
Data suggests that slide comps perform quite comparably to thread-on comps. Limited test at the link and image below, but the slide comp is right in the mix between the two thread-ons.
Talk of expansion chambers strikes me as superfluous. The purpose of any comp is to dump excess gas after a bullet has departed the bore. The purpose is not to create V2 rocket nozzles on the top of the barrel. Even if V2 rocket nozzles were the purpose, thread-on comps would not be particularly effective as the bulk of gas pressure takes the path of least resistance out the front of the barrel when the bullet departs. The ported barrel and slide combination performs measurably better because the ports relieve pressure and exert a downward force for significantly longer duration before the bullet departs the bore and opens the path of least resistance. https://www.recoilweb.com/carry-gun-science-ported-vs-comp-vs-slide-comp-vs-bare-muzzle-181664.html |
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[#16]
The "longer duration" makes sense to me. What doesn't make sense to me is how the Macro slide comp did better than the PMM comp in that test. PMM has a real comp, longer barrel, comp adding weight to the end. All the Macro comp could offer would be a shorter barrel and presumably more gas?
And having owned both and shot them back to back, the PMM seemed much more effective. Originally Posted By wookie1562: The ported barrel and slide combination performs measurably better because the ports relieve pressure and exert a downward force for significantly longer duration before the bullet departs the bore and opens the path of least resistance. View Quote |
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[Last Edit: esdunbar]
[#17]
I have not shot the PMM gun, but I can tell you that the 365 AXG Legion shoots much flatter than the Macro with the comp. The aluminum frame really makes a difference. I was shocked how fast my dot was back on target.
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[Last Edit: November5]
[#18]
Originally Posted By wookie1562: Data suggests that slide comps perform quite comparably to thread-on comps. Limited test at the link and image below, but the slide comp is right in the mix between the two thread-ons. Talk of expansion chambers strikes me as superfluous. The purpose of any comp is to dump excess gas after a bullet has departed the bore. The purpose is not to create V2 rocket nozzles on the top of the barrel. Even if V2 rocket nozzles were the purpose, thread-on comps would not be particularly effective as the bulk of gas pressure takes the path of least resistance out the front of the barrel when the bullet departs. The ported barrel and slide combination performs measurably better because the ports relieve pressure and exert a downward force for significantly longer duration before the bullet departs the bore and opens the path of least resistance. https://i.imgur.com/mZSdJVV.png https://www.recoilweb.com/carry-gun-science-ported-vs-comp-vs-slide-comp-vs-bare-muzzle-181664.html View Quote |
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[#19]
I went with the Fdez Werx XXL comp'd slide with ported barrel. So I get a 3.7" ported barrel with a comp at the end of it. I love it, and shoot it fast.
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[#20]
It may not matter to some but, a shorter barrel with a ported slide will produce less velocity. PMM has a video on their web site measuring recoil reduction and velocity with their 365 barrel and comp. I do hear the Legion' s are sweet shooter's, I'd guess the module plays a big part in that.
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[#21]
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