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Posted: 2/13/2017 9:28:51 PM EDT
[#1]
about 10 inches is optimum and the bullet can be slowing down with many powders in say a 16 inch barrel.
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Posted: 2/13/2017 11:02:42 PM EDT
[#2]
Wonder how fast one of the ultralight fast specialty rounds in 50 to 85 grains would be.
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Posted: 2/14/2017 7:56:02 PM EDT
[#3]
Quote HistoryQuoted:
Wonder how fast one of the ultralight fast specialty rounds in 50 to 85 grains would be.  9x19mm, 80gr Solid Copper Spun (SCS), Fort Defense, Fort Scott Munitions, Velocity Test  9x19mm, 90gr Xtreme Defense, +P (09350090S+) Lehigh Defense Velocity Test |
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Posted: 2/14/2017 10:18:12 PM EDT
[#4]
No idea OP. But out of the 16" Keltec, 115gr knocked my AR500 popper plate full cycle every time at 50 yards. Same ammo out of a G17 would only bump it.
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Posted: 3/8/2017 2:39:17 PM EDT
[#5]
I have begun gathering 9x19 for just this very subject.... currently weather is not helping my folly.
I am planning to test ( for velocity and reliability ) most all of the commonly available FMJ, HP, +P, +P+, and some of the exotic's... I intend to test velocities from a Beretta 92 and a 16" PSA Colt pattern AR.... I might be able to use a SBR'ed 8" SIG MPX as well. Most of the info I can find is fairly dated.... and sporadic... ( IE, a test here and there with different length barrels ) I will be posting the info here, on A15.com... much like my previous .223 / 5.56 data ( which also has a bunch of other ammo needing to be chrono'd ) Buffman has a lot of good data. BTW....it is amazing the amount of 9x19 out there..... |
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Posted: 3/8/2017 2:55:33 PM EDT
[#6]
Quote HistoryQuoted:
I have begun gathering 9x19 for just this very subject.... currently weather is not helping my folly. I am planning to test ( for velocity and reliability ) most all of the commonly available FMJ, HP, +P, +P+, and some of the exotic's... I intend to test velocities from a Beretta 92 and a 16" PSA Colt pattern AR.... I might be able to use a SBR'ed 8" SIG MPX as well. Most of the info I can find is fairly dated.... and sporadic... ( IE, a test here and there with different length barrels ) I will be posting the info here, on A15.com... much like my previous .223 / 5.56 data ( which also has a bunch of other ammo needing to be chrono'd ) Buffman has a lot of good data. BTW....it is amazing the amount of 9x19 out there..... Great. Looking forward to this. |
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Posted: 3/8/2017 3:14:55 PM EDT
[#7]
Quote HistoryQuoted:
Great. Looking forward to this. Feel free to request a specific round or two. |
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Posted: 3/8/2017 3:33:29 PM EDT
[#8]
Will be interesting to see how actuals compare to Quickload numbers.
Quickload just keeps increasing the fps as the barrel goes up to stupid lengths (for instance it said a 50-inch barrel would give 1722 fps). Quickload 5-inch barrel 
. . . Quickload 10-inch barrel 
. . . Quickload 15-inch barrel 
. . . Quickload 20-inch barrel 
. . . |
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Posted: 3/8/2017 3:38:30 PM EDT
[#9]
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Posted: 3/8/2017 3:46:31 PM EDT
[#10]
Quote HistoryFrankly... that exact list is the one I consider dated. While it is quite helpful... It lacks a lot newer ammo. Especially some ( really most all ) of the ones on the recommended carry list. And BBTI is what helped prompt my curiousity. |
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Posted: 3/8/2017 3:49:57 PM EDT
[#11]
Quote HistoryAccording to that info, there is a good deal of benefit from the carbine length barrels. |
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Posted: 3/8/2017 5:08:18 PM EDT
[#12]
Quote HistoryQuoted:
According to that info, there is a good deal of benefit from the carbine length barrels. That is part of why I want to do this. Some of the modern HP designs may not be able to handle the added velocity properly.. IE, limited penetration from excess impact velocity.. while it might benefit other HP designs. A decent example of what I mean is the slightly less penetration of +P v. standard loads using the same bullet.... and if the velocity of a +P round is boasted even more... then I suspect there will be even less penetration. And ya gotta start some where... so velocity tests will, at the very least, help me choose a "best" ammo for my carbine.... or answer questions for me. |
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Posted: 3/8/2017 5:11:10 PM EDT
[#13]
Quote HistoryQuoted:
Frankly... that exact list is the one I consider dated. While it is quite helpful... It lacks a lot newer ammo. Especially some ( really most all ) of the ones on the recommended carry list. And BBTI is what helped prompt my curiousity. Quote HistoryQuoted:
Frankly... that exact list is the one I consider dated. While it is quite helpful... It lacks a lot newer ammo. Especially some ( really most all ) of the ones on the recommended carry list. And BBTI is what helped prompt my curiousity. I find it's a pretty good reference to extrapolate from to give me a general idea. |
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Posted: 3/10/2017 5:40:18 PM EDT
[#14]
Quote HistoryQuoted:
Feel free to request a specific round or two. Well since you are asking... Garden variety 115 or 124 FMJ (American Eagle, WWB, Fed Green box, or anything found at any Walmart) as a type of control group 147 HST 9BPLE +P+ Thanks. |
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Posted: 3/10/2017 6:09:06 PM EDT
[#15]
Quote HistoryQuoted:
According to that info, there is a good deal of benefit from the carbine length barrels. Yup, we can conclude a few things: *Max velocity is USUALY around 12 inches *Lost velocity after 12 inches is Negligable *The main advantage after 12 inches is reduced noise and flash Hence why a 16" PCC is a great choice for HD, if you don't have time for ear protection it's not as big a deal 
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Posted: 3/10/2017 10:11:08 PM EDT
[#16]
Quote HistoryQuoted: That is part of why I want to do this.
Some of the modern HP designs may not be able to handle the added velocity properly.. IE, limited penetration from excess impact velocity.. while it might benefit other HP designs. A decent example of what I mean is the slightly less penetration of +P v. standard loads using the same bullet.... and if the velocity of a +P round is boasted even more... then I suspect there will be even less penetration. And ya gotta start some where... so velocity tests will, at the very least, help me choose a "best" ammo for my carbine.... or answer questions for me. Indeed, this is what needs to be tested. Given the increased velocity out of the 16" bbl, what will the penetration be after expansion? This may be where the 147 grn loads shine - as they gain the least velocity from the increased length. |
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Posted: 3/13/2017 1:11:00 PM EDT
[#17]
Quote HistoryQuoted:
Well since you are asking... Garden variety 115 or 124 FMJ (American Eagle, WWB, Fed Green box, or anything found at any Walmart) as a type of control group 147 HST 9BPLE +P+ Thanks. Got all those... including +P 147gr HST |
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