Re: PVS-14 on a 7.62 system
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wes1</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor-TNVC</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wes1</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Victor-TNVC</div><div class="ubbcode-body">Indeed David and ASM1 are correct, HALO measurement is key and there is no exemption on either ITT or L3.
I've seen both tubes black spot on all sorts of NODS...Well except for the PVS-22/27 line from OSTI (now FLIR)...Their patented recoil mitigation system does work well at times on big boomer guns. </div></div>
<span style="font-weight: bold">Is the recoil mitigation system built in the Larue mount?</span> It's my understanding the tubes are "potted" in the OSTI systems, and are non serviceable. </div></div>
None at all built into the LT mount.
Never had one single return of the 22 or 27 so we never had to have service. ;-) From the reports from the field as well as FLIR....Under 1% of all come back.
Edited, I do take one thing back...Had a BIG Marine twist off the power knob of a 27 once. Unbelievable he twisted past the detent.
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Understood, so was the recoil mitigation system designed at the request of the mil?
I am very interested as I lost a tube to a 308 gas gun last year.
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Hey Wes, I gotta give out a bit of history here first...
I think (if my old memory serves me correctly), it was a bit of both. Several years ago as you probably remember I and many others including Night Vision Equipment Company had started having NUMEROUS Raptor tubes fail left and right when the newer Omni Pinnacles starting hitting the shelves.
Regardless of the HALO values something was different about these tubes vs. Omni IV that were being used at that time with great success. This debate still rages... Some say it was the new thin film ITT Pinnacle technology that was introduced, others say this or that. Never really got the real story what had transpired from one Omni contract to the next that made the newer ITT contract tubes less recoil resistant. (Same as ever finding out all the data points in which make up a Mil-Spec tube vs. a commercial one ;-) ).
During this time frame we had a fail rate of 50% of Raptors and also at that time clip-ons from OSTI (now FLIR) were getting contracted to phase out all the Raptors. KAC contracted OSTI back then to make the first clip-ons, but then lawsuits happened and OSTI broke off, and the lawyers and courts intervened...and do not want to get into any of that! ;-)
Regardless, OSTI and the Mil knew all too well about the new black spot issues with the Raptors so OSTI at that time went to work to eliminated or at least mitigate the effects of recoil related tube issues.
The other important thing to remember at this early time, it was a logistical nightmare to have a sniper with 2 weapon systems. One platform with day optics and yet another that had to be a dedicated NV platform. This also proved to be very expensive and the Mil knew they could kill 2 birds with one stone sorta speak with a modern day clip-on device. They also knew they would sacrifice a bit of edge to edge sharpness and a tad bit less contrast with a clip-on vs. a dedicated optic. BUT the Mil knew as you know the benefits of a modern day clip-on device and the Raptor was breathing it's last breath in the Mil circles.
In the end, the OSTI system worked so well, the actual President of ITT paid OSTI a visit some years ago to personally get some hands on demos of the newly released kit the Mil folks were getting.
I've hammered the 22's and the 27's over the years, and so has the Mil with .308's, 300's, 338's etc and have yet to see ANY ill effects from recoil. This is a very rare feat that a system works so well for such a long duration with time down range.
Vic
