I have an XP 100 that was built by JD Jones back in the late 70's for metallic silhouette shooting. I shot it a lot with no problems because we shot on cement pads with no roofs. I decided to enter a match a couple weeks ago that had covered shooting pads and it was really hard to see the front sight because of low light conditiond. The front sight is a globe with a crosshair that I made out of .006 dia. wire. It worked really well being centered on the rear peep and not covering what you were shooting at. My question is if I cut a slot infront of where the crosshair is in the globe, do you think it will let any light in to keep the crosshair visible on the black targets. Added picture with blue tape showing black area in front and in the back of the crosshair that could be machined out to let light in. Will probably just do the slot in front of crosshair first. That is the problem I was having. The crosshair would dissappear on the targets and I would have to move off of them to get the crosshair aligned in the peep and then back on the target. I don't think painting the crosshair white will do any good, not enough light getting to it. Guess I could tape a flashlight to the barrel. lightbulb What would you professional gunsmith's do? Thanks Tarey Here are a couple pics. It is a .35 Remington necked to .338 caliber called the 338 CJMK for Crowley Jones Mastadon Killer it would knock down the mastadon silhouette at 250 yds. It has a Shilen barrel and rifle magna port. Shoots 200gr Hornadys at 2300fps.