SUIT cams. ballistics chart.

[brownknees]

I finally got to run the comparisons for the differing trajectories for the SUIT zeros as used with the (Mythical) .223 & .308 cams.
The tracks are as follows.
Lower two (they are so close together you can only see one) the .223 & .308 with the 250 yard zero for .223 & the 300 Yd zero for the .308.
That's the rear setting for the range lever.
Myth busted!
the trajector differences are minimal or non-existant.
The upper two traces are the same loads, but with the 450 & 500 Yd zeros dialled in.
That's the front setting for the range lever.
Myth busted!
The differences, even at long range are so slight that it clearly indicates the "different" cams just use different zero distances to indicate the corrections for trajectory of the 2 rounds.
So for all those who wanted to get a .308 cam, instead of a .223 cam. Good news Now you have one & it didn't cost a penny!
Sorry for the low res chart, it's the limit of file size here on the forums, but if anyone wants a full size, higher res one let me know with an e-mail addy & i'll send you the hi res version.

[TRANSAM 79]

What is the physical difference between the two.

[NZ L1A1 Collector]

brownknees, thanks for the information it again confirms there is no 5.56 mm / 7.62 mm cam issue. Other then maybe some aftermarket thing.

In all the reference material I have read through from the manufacturer, not one document has stated there is a separate cam system for 5.56 / 7.62. It doses say the scope can be used on anything from a 84 mm AT weapon to the M16........ i wonder where the cam is for the 84 mm?

The sight is not a telescopic sight, it's an optical aid for the soldier to help give an aim point at dusk and night and to provide some optical enhancement during the day.

The cam allows the sight to be quickly changed from 300 - 500 yard setting and the rest is up to the solider to hit the target by the skills they are trained to do such as 'aiming-off'.

No one has considered the possibility that the ' 5 ' stamped on some Israeli issued Trilux sights might in fact mean that Modification Instruction No. 5 has been applied to that sight? and the ' 5 ' is visual reference to that particular modification.

I feel better now your data suports my research :-)

[brownknees]

Oh No! now I've got to get an 84mm Carl Gustav, just to eliminate that cam also!
I wonder who makes 84mm reloading dies?
:rofl:

[brownknees]

TransAm, try this link.
It gives a bunch of data on the cams & differnces, if any.
http://www.falfiles.com/forums/showthread.php?s=&threadid=158267
:? :angel:

[quiettype]

My question is:Would the 250 and 450yd. zero for 5.56 be based on the 62gr m855 or the 55gr m193? Has anybody ever used these SUITs for their 223's? I just mounted one on my Daewoo amd am curious.

[brownknees]

This chart was based on a commercial 62Gr. HPBT.
If you let me have the desired MV, BC, & range, then I'll run you a custom sheet based on that data.:biggrin:

[quiettype]

Would you do one for the 55gr m193 @ 3100fps zeroed at 250yds?Thanks!

[brownknees]

Do you have a B.C. (ballistic coefficient) for that projectile?
I'll need that to run the chart.
Thanx.

[quiettype]

I believe the BC is .243 for the m193 projectile.Thanks

[brownknees]

Do you also want the .308/150/2800 as a comparison, or just the .223?

[quiettype]

That would be splendid! I'm so pleased with my SUIT.Only wish it were spring to sight it in.Thankyou

[brownknees]

55gr ballistics you wanted.
Here are the charts.
#1 is the .308 150Gr. FMJBT @ 2750 FPS with a 300 yd zero.
#2 is the comparison between the above & the 55gr .223. (M193)

There seems to be no real difference out to about 450 yds, at which point the .308 has less drop & more retained energy.

If you can PM me with a real e-mail addy I'll send the hi res version directly to you.
Hope this is what you needed.

:beer:

[brownknees]

chart #2. Sorry about the lo res quality, its all I can post directly.

[brownknees]

hi-res e-mailed today! enjoy.
:cool: