I have the Big Dot on three revolvers, one matched to the C&S Extreme Duty rear sight with tritium tubes.


I'm 70 with, ahem, vintage, eyes.
I've been a backpacker since I was a teen and still backpack the High Rockies and used to 'pack the Idaho Backcountry. I wanted aiming aids for all light conditions.
My first is a Ruger Redhawk modified by Hamilton Bown to 500 Linebaugh. It has the Xpress rear sight relieved for the Big Dot. On a Moonless night I can see hat thing glowing like a beacon and easily and quickly put it on target. I rarely shoot the gun anymore because it is a bone breaker, but I never had a problem hitting accurately out to 50 feet.
Second one is a S&W 329PD, purchased for the same reason. I sent it to C&S for installation of the Big Dot and their Xtreme Duty rear with tritium tubes. I spent an extra few bucks to have them test fire it with heavy .44 Magnum bullets and relieve the channel in the rear of the Big Dot to hit point of aim.
I like the setup better than the Ruger because I can instantly align the sights in, again, a totally dark night. I added Crimson Trace Hog Hunter grips to give me the ability to point, rather than aim, at night or longer distances. I really like it and find no problem hitting accurately, even with lighter bullets, out to 50 feet.
Third one is a S&W 386NG. It had the XS Sight System tritium front sight from the factory with non-tritium C&S Xtreme Duty rear. I sent it to C&S for tritium tubes in the rear. I also sent it to S&W to have the titanium 7-round cylinder installed.
This is one of my bedside guns. The glowing sights make it instantly findable and aimable. I also carry it concealed fairly often. I haven't tried shooting out any farther than about 10 meters (33-ish feet) but have no trouble keeping the shots in a 4" group, slow fire.
These were all quite worth the money to me. The Linebaugh and 329PD because my aged eyes needed more for shooting in low light.
The 386NG I did for that extra aid in pointing in low light.