Looking for a "Roller" to Knurl some ML Bullets?

KnightExtreme

Lil-Rokslider
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May 17, 2025
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Was looking for a way (easy) to Knurl ML Bullets and found someone using this Roller (see attached)
Wondering where 1 might find something like this, it looked easy to use and maybe getting more consitency?
Anyone know where to find such a roller?
Thanks
KE

Roller for Knurling Bullets.png
 
Maybe something like this that has the cutting edges not just a Roller tool?
Being this all new for me just looking at something as 2 Files is okay but being a "novice" Simple is best for me?
KE
 
There’s a dude on Facebook that makes a Knurling tool. It gets mixed reviews.

Two files works just fine.

 
Here is the Video of the Roller I was looking for it is not simple sniping a simple picture from it.
From what the member referred a link is what I was hoping to get a more "consistent" results. Using 2 files is mention on a few forums but thought a Roller like what is use in this uTube Video would be a better way and trying to get the bullet in the right position each time but by just having between the 2 Rollers and rolling over a File should make Easy for a newbie. I get some have done this for years and have the right skills but for someone like myself and not sure how well it will turn was why I was asking.
Then I came across the amaozn lnk (above) but hard to know if those like some on amazon will even work?
Also Not a Facebook User so can't see what is on Facebook.
Here is another ;
But these are more for usage with a Lathe and stuff like that like a machinist would use?
Guess there is a lot more to knurling ML Bullets.
Was hoping to find a way that is easy & consistent - guess that is never what happens with muzzleloading stuff?
Guess I will just allow my bullets be loose and hope for some good shooting results. Takes a lot just to do Muzzleloading the best right way... (for me anyway)
KE
 
Even getting consistent results with a lathe and knurl can be tricky at times until you get your feeds and speeds right.
 
Here is the Video of the Roller I was looking for it is not simple sniping a simple picture from it.
From what the member referred a link is what I was hoping to get a more "consistent" results. Using 2 files is mention on a few forums but thought a Roller like what is use in this uTube Video would be a better way and trying to get the bullet in the right position each time but by just having between the 2 Rollers and rolling over a File should make Easy for a newbie. I get some have done this for years and have the right skills but for someone like myself and not sure how well it will turn was why I was asking.
Then I came across the amaozn lnk (above) but hard to know if those like some on amazon will even work?
Also Not a Facebook User so can't see what is on Facebook.
Here is another ;
But these are more for usage with a Lathe and stuff like that like a machinist would use?
Guess there is a lot more to knurling ML Bullets.
Was hoping to find a way that is easy & consistent - guess that is never what happens with muzzleloading stuff?
Guess I will just allow my bullets be loose and hope for some good shooting results. Takes a lot just to do Muzzleloading the best right way... (for me anyway)
KE
There’s nothing consistent about the way that guy is knurling! Lol

You’re overthinking it.
 
Do you muzzy guys tend to knurl all your bullets no matter what? Or are there specific situations?

Can you give an example of how this improved something for you?
 
Do you muzzy guys tend to knurl all your bullets no matter what? Or are there specific situations?

Can you give an example of how this improved something for you?
Knurling increases the diameter slightly and allows the bullet to grip a sabot better for more consistent spin up. I knurl (or order them knurled) all bullets that I shoot in sabots. This can make a big difference in saboted bullet groups.
 
Looks like loose bullet is a good thing when shooting a Knight DISC Extreme at least that is what I got from these experts posts so this okay. Then that is the way I will shoot. Knurling is not required? So Loose fit is the way I need to go - okay will do! Thanks
KE
 
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