Mold Temperatrue probe & hole placement

[Sendaro]

Have been reading that some bullet casters drill a hole in their mold to allow a temperature probe to enter. I have a thermometer that came with an LP gas turkey fryer that I wonder if it would work. Do any of you follow this practice with preheating your molds and checking the temperature with a probe? If so where and how deep do they drill the access hole for the probe? I don't want to ruin a mold.

Sendaro

[sw Idaho]

Take a look at NOE molds. They offer drilling there molds at time of purchase. I think part is how many cavities your mold has and how deep you draw it. I have bought 2 from NOE that have been drilled. Plan on trying them as soon as weather clears off here.

[Mike W1]

Don't know how the guys that know what they're doing do it but have drilled a couple of mine and they work. With my setup it was drilled into the side of the mould so I could leave the TC while casting. It's roughly 1/4" from the front and the pix has a white q-tip in the 1/8" hole that's about 1/2" deep. Tapped a set screw in the front to secure the TC. Just seemed to me you just need to place the hole/holes where they don't interfere with the cavity. Also did a Lee DC with similar success.