Thanks 3T, you kept it simple and easy

Great video, thanks for sharing.

Good stuff!

Great info!

Awesome video lots of great information

Subscribed again! 😂
Good video sir! Thanks for sharing

Great video Tommy

nice

I had a machinist measure the headspace on my CZ 457,, came out to .045 and I shim accordingly for the ammo I'm using

3 numbers you need to dance with concerning head space. 1. Head space 2. Shoulder depth 3. Bolt face to barrel face clearance.

Good info Tommy!

Thanks for breaking it down in an easy to understand way.

👍

Galling can be prevented by applying a small amount high pressure grease into the cocking cam, the back edge of the bolt lug and handle. This is good maintenance for any bolt action gun.

Good video brother! 👍

Good video, I'm working on a cz now, this helps.

I purchased a Bergara BMR-X steel last year.  I have shot at least 15 types of ammo through it.  Basically none of them shot very well.  Was disappointed with the gun and talked with Bergara.  They looked at some of my group data and told me the gun was shooting within factory specs and not to send it in.  Anyway I have it up for sale.  Wish I had seen your video before now, maybe I could have made some adjustments.

Great video Tommy! A topic that I needed more background on. What headspace would you suggest for CCI Standard Velocity?

I have chamber and fit rimfire barrels using standard spec reamers, supplied with a go gauge and no-go gauge set. I cannot say what you are doing is better or worse than what I have done. However, it was a long time since I have done one.
One thing I did checking my fit was removing any parts and springs from the bolt. This ensures a true and accurate measurement using the gauges and also insures no damage will occur from the pressure of the bolt or cocking spring. The slight infinitive difference between the gauges is easily miss-read. The bolt face of a bolt action never should contact the barrel face.
I test the no-go gauge first and the bolt should not close. The go gauge should close completely. With all the parts remove from the bolt, just letting the bolt freely, shut on its own weight tells you the headspace is correct.
Checking the 10/22 is fairly simple I test mine using a small thin set of feeler gauges inserted thru the magazine well. I would never claim how accurate it works but it works on the cheap for me. I can tighten the headspace by just carefully using a stone. However, you may run the risk of going too far and needing to replace your bolt. There is a fine line between perfection and failure. Whenever you do this affects the firing pin protrusion you may need to adjust it too. Going too far can be fixed however, requires a vertical mill or super accurate drill press for that Boo-boo. No matter what you decide to do, has a 50/50 chance of working or not working when adjusting your rimfire headspace. 🤔👍

Did I miss something or did you not check the thickness of the cartridge rim? That really determines whether you have the correct headspace for the CARTRIDGE that you're using..So, you have a  .045 headspace based on the go-no go tool..But..If the cartridge rim is only 0.042....not the best, right? The best would be the headspace matches the rim thickness + .01....Am I wrong?