CVA Optima Breech Plug hole size

[Rvrrat14]

Does anyone know the drill bit size needed to clean out a standard CVA QRBP? This rifle is newly purchased. I’ve got a torch cleaner for the small end. Thanks!

 

[Retiredusn]

Take a look at this

 

[Rvrrat14]

Take a look at this

I’m using the standard breech plug not the BH209 plug, which has a larger hole…but thanks!

 

[Retiredusn]

Your welcome, maybe if you take the breech plug to a hardware store that sell single drill bit you could find the right size or they may have a gauge to size the hole.

 

[Caniborrowsomeammo]

I use a 1/8th drill bit in a homemade pin vice to clean the hole while shooting. It's just a small wooden dowel with the bit pressed into it.
When I get to cleaning the gun when ready to put it up I soak the breech plug in Hoppes9 to get the primer residue out.

 

[Les Harris]

Try 1/8 inch or # 32 twist drill size. I forgot wht drill bit was included in my cleaning kit.

 

[ronlaughlin]

drill bit size needed to clean out a standard CVA QRBP?

The flame channel is 3 mm diameter. If you cannot find a 3mm drill, a #32 drill is quite close. One could use a 7/64" drill too if not too fussy.

One could also drill out the flame channel to 1/8" quite easily. Just be sure to stop when the flash hole is encountered.

 

[Rvrrat14]

I checked the plug and a 7/64 bit will fit a CVA Standard QRBP flash channel hole and was able to find a small Hobart torch bit cleaner that fit the flash hole (4th cleaner from the smallest side).

Thanks to all for the suggestions! Very helpful to get started!