- Location
- The Orion Arm
According to the folks over at Funker530,
[youtube]G6pCMmOewME[/youtube]
[youtube]G6pCMmOewME[/youtube]
New Australian Defense Force Assault Rifle In Action
- Thread starter Melnibonean
- Start date
THE_SASQUATCH
CGN frequent flyer
- Location
- The Forest
Always Loved the looks of the F90
What I see is Lithgow marketing common attributes found in most service rifles. The barrel change capability is useless as you still need independently zeroed and mounted optics for each barrel, so it has no advantage over the AR platform. It's common knowledge that 20" barrels are less than ideal and that 16" is the sweet spot. Not to mention I thought the whole benefit to bullpup was to have a full length barrel(whatever that means) in a compact package. So why offer and push different length barrels?
The ambi shooting is a gimmick. His head position is much further back when shooting from his left shoulder. Not a major issue with a reddot but it won't work with magnified optics. The F90 weighs more than 16" AR by over half a pound and still does not have an adjustable stock for proper fitment to the individual. The addition of more "rail estate" for optics is nice, albeit 20+ years late.
TW25B
The ambi shooting is a gimmick. His head position is much further back when shooting from his left shoulder. Not a major issue with a reddot but it won't work with magnified optics. The F90 weighs more than 16" AR by over half a pound and still does not have an adjustable stock for proper fitment to the individual. The addition of more "rail estate" for optics is nice, albeit 20+ years late.
TW25B
...Are they? How so? It's my understanding that ~16" is the sweet spot for accuracy but that 20" gives you peak velocity to inducing tumbling and fragmentation at longer ranges. In a bullpup it's more practical to have that long barrel than it would be in a conventional rifle, and an infantry rifle doesn't have to be laser-beam accurate.
saw that. I doubt too that the mag has 30 rounds in it, appeared way to easy to properly insert. That mag change did looked a bit awkward and they must have rehearsed it a few hundred times
kinggeorge168
CGN frequent flyer
THE_SASQUATCH
CGN frequent flyer
- Location
- The Forest
^^^
Yup
Yup
The velocity loss going from 20" to 16" is between 4-6%, not enough to worry about. The sweet spot for accuracy with respect to barrel harmonics/vibration was determined to be 18" or so according to NSW Crane and KAC. The fragmentation performance threshold on a 20" gun is only 200 yards, hardly extended range. This is also only true for M193 and M855. Shot placement still trumps all. Aside from Afghanistan the majority of engagements are inside 100 yards and all but a few engagements are inside 300 yards. The need for a long range calibre or rifle just isn't a reality.
Again I ask, if the longer barrel offers increased velocity(regardless of how little that really is) then why do they offer a 16" version???
The rifle is a licensed Steyr AUG that has been upgraded/modified.
TW25B
If they do what we did, they'll put 28 or 29 in the mag, depending on how the springs behave in the specific mag.
My take is the new Aussie Service rifle is a well thought out and natural evolution of their service weapon based upon experience their Regular Forces gained in Afghanistan and from working in conjunction with US, British and Canadian units who have embraced the M1913 rail system.
-S.
Bolivar
CGN Ultra frequent flyer
It's called training.
As for the previous comment about looking at your mag/mag well when changing mags most of what I have read/seen actually advocates this. I don't see the problem here.
