Likes pretty much everything in every caliber.
It works just fine. It was no different, really, than shooting with a paster over my optic as I demonstrate in class.
It's not difficult unless it's the rear lens that is blocked by something you can't wipe away. Then you're down coping techniques that are pretty unreliable past about 5 yards.
3/15/2016
In my testing, while not as bad as the DPP, the SRO is highly susceptible to dot dispersion from light rain, even after hydrophobic lens treatment. On the other hand, I can go for a swim with an RMR with the same hydrophobic lens treatment and the dot is immediately visible for acquisition as soon I draw my pistol. Both dots being from the same manufacturer, I was tempted to make generalizations about performance, but real world testing and experience destroys my hypotheses time after time. After extensive testing, I have zero issues carrying an RMR with lens treatment, even when working in areas with some of the highest annual precipitation levels in the US.
^^ THIS! I have heard the same things as well. In fact, our head instructor crapped all over those statements. Not to mention in a fight you likely don't have the luxury to simply burn a round into the berm to clear out the optic. Burning a round in a fight could get you killed, someone else killed or generally cost you time/rounds, all are bad options.
After this last event, I am firmly in the closed emitter camp and this further confirms my findings under use in all conditions.
I did some testing with a 507 Comp this morning. Since I had a bottle of lens cleaner handy, I thoroughly doused the emitter on a 507 Comp, with the 2 moa dot selected. Note, this wasn't a drip or two of liquid, but rather I doused it. This is what it looked like -- a thoroughly unusable dot.
First, I switched to the 8 moa circle, and it still wasn't satisfactory. When I switched to circle only, even though the splatter was still there, the circle would have worked. The picture wasn't a good representation of what I saw, but you get the idea. For the same reason a circle works with a low sun angle, it seems like an option when moisture could get on your emitter.
Likes pretty much everything in every caliber.
Thanks for posting. Actually testing gear leads to insight.
Here are some pics with an RMR with a hydrophobic wax lens treatment.
1. RMR with lens treatment and drain holes taped and filled to overflow with water
2. RMR with lens treatment sight picture while filled with water.
3. RMR with lens treatment sight picture after draining (happens nearly instantaneously if drain holes are not taped, ie within the timeframe of a holster draw)
What brand lens treatment are folks using?
Doesn't read posts longer than two paragraphs.
Good post @zcap. My most recent problem (see above) was from a drop of water covering the emitter, not the lens. Recoil didn’t work to clear it. I wonder if a hydrophobic coating would help.
“There is no growth in the comfort zone.”--Jocko Willink
"You can never have too many knives." --Joe Ambercrombie