First attempt at crowning=CHATTER

[Jmacken37]

I bought one of these Brownells tools...

...and used the correct pilot with cutting oil, but I'm getting chatter marks.

What am I doing wrong???

 

[sniperdoc]

Probably uneven pressure.
It's harder by hand than by machine because speed and pressure are wildly inconsistent.
Keep trying, use more lube than a covey of porn stars, and never spin the cutter backwards.

 

[chili17]

Hand tools are crap for this kinda work. Lathe works best. Dont try and correct it with that thing, you'll just make it worse. Send it to me so I can fix it before you really f*** it up

 

[sniperdoc]

Hand tools are crap for this kinda work. Lathe works best. Dont try and correct it with that thing, you'll just make it worse. Send it to me so I can fix it before you really f*** it up

Most generous

 

[Jmacken37]

Most generous

Yep. That's Chili fer yah! I'll show you how I fixed it this weekend and you can cuddle me if I f'd it up!

 

[MPA guy]

Yeah, a lathe has a lot more power (rpm) and can apply pressure better.

But in all honesty, you actually did pretty dog gone good with the hand tool

 

[sniperdoc]

Deleted

 

[root]

You can Smith it out further with a 45acp fmj and valve lapping compound for a mirror finish.
It may take a few more then one bullet head though with that chatter.

Rich