Max Chamber Pressure
#17
The recorded data I have ( a brief search at 3:30 am...) for my 20" barrels (gas gun ARs) show ~2650 for both the 108 and 105 factory loads. This is in my barrels, but would translate to ~2750 for a 24" barrel, which is probably what they used for testing/benchmarking their factory loads... although I'm not sure, but 24" is the typical standard barrel length, for marketing purposes.
Also, keep in mind that they have access to a non-commercial powder, so whatever pixie dust they use, it's not found in a bottle on the shelves.
So welcome to the world of ammo marketing... yes the factory load is suitable for gas gun, but no, probably not with any powders you can get. After all, why list a 20" speed when the 24 MV is a bigger number, 'cause speed sells...
One possible exception, and I mean possible... is Lever. I've got some data for a 20" that mimics the 2650 factory speed in my 20", and that extrapolates to ~2740 in a 24" barrel... sooooooo maybe Lvr could get you "there" as far as "factory speeds.
Footnote, for several calibers, I don't typically get the 24" posted speed out of factory loads... in some of my Creedmoors I can, but other cals -- nope.

Edit to add: to always search for the "posted factory" MV is sort of a quixotic search... sure it would be nice but they have commercial test rigs that aren't your barrel... every barrle is different. Different internals, different friction factors, different amounts of wear, different harmonics... and for hunting purposes, an extra 100 fps gets you most times about 50 yds extra distance. I don't try to hunt right at the max distance my bullet/load might be ethical, I always like some margin.
Best thing to do is to find out what speed your barrel is most accurate for, which btw is not always the fastest speed. Might hurt to admit it (and this is an IMO) but if you really need more distance you might have to bring more gun to the firing line. just sayin'.
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Messages In This Thread
Max Chamber Pressure - by English Rifleman - 04-12-2023, 04:03 PM
RE: Max Chamber Pressure - by grayfox - 04-12-2023, 07:13 PM
RE: Max Chamber Pressure - by English Rifleman - 04-12-2023, 08:33 PM
RE: Max Chamber Pressure - by Fmuguira - 04-15-2023, 05:18 AM
RE: Max Chamber Pressure - by 762nato - 04-15-2023, 09:22 AM
RE: Max Chamber Pressure - by GRH - 04-15-2023, 12:04 PM
RE: Max Chamber Pressure - by English Rifleman - 04-15-2023, 06:42 PM
RE: Max Chamber Pressure - by grayfox - 04-15-2023, 06:56 PM
RE: Max Chamber Pressure - by English Rifleman - 04-15-2023, 09:23 PM
RE: Max Chamber Pressure - by GRH - 04-15-2023, 11:08 PM
RE: Max Chamber Pressure - by CZ527 Guy - 04-15-2023, 10:55 PM
RE: Max Chamber Pressure - by English Rifleman - 04-15-2023, 11:34 PM
RE: Max Chamber Pressure - by BluntForceTrauma - 04-16-2023, 03:36 AM
RE: Max Chamber Pressure - by grayfox - 04-16-2023, 06:57 AM
RE: Max Chamber Pressure - by English Rifleman - 04-16-2023, 08:53 AM
RE: Max Chamber Pressure - by English Rifleman - 04-25-2023, 06:57 AM
RE: Max Chamber Pressure - by grayfox - 04-25-2023, 07:52 AM
RE: Max Chamber Pressure - by English Rifleman - 04-25-2023, 04:39 PM
RE: Max Chamber Pressure - by alwie - 04-25-2023, 05:14 PM
RE: Max Chamber Pressure - by CZ527 Guy - 04-27-2023, 01:10 AM
RE: Max Chamber Pressure - by grayfox - 04-25-2023, 06:48 PM
RE: Max Chamber Pressure - by English Rifleman - 04-26-2023, 07:48 PM
RE: Max Chamber Pressure - by grayfox - 04-26-2023, 08:39 PM
RE: Max Chamber Pressure - by grayfox - 04-26-2023, 11:14 PM
RE: Max Chamber Pressure - by English Rifleman - 04-27-2023, 05:37 PM
RE: Max Chamber Pressure - by trianglevelvet - 04-30-2023, 01:47 AM

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