Method/product for the inside of the necks after turning

[dave300]

Just finished building a 300 RUM for our sons college graduation. After turning the necks just to clean up the OD I have noticed some are a little bit more "rough" on the inside, mainly due to the expander mandrel.
Even though the necks were well lubed, both during the expanding and the turning process, I still would like to "smooth" out the interior of the necks a bit.
I have used and read about wrapping a scotch brite pad around a smaller caliber brush and use a cordless drill and that has worked ok, but my main question is there a brush/ product out there that can be chucked up to a cordless to smooth out the insides?
Thanks. Dave

 

[savagedasher]

Toss them in the vibrator with corn cob and walnut shell Larry

 

[Dos XX]

Blue Iosso case neck brush, by hand or in power drill. I get them at PMA tool. It says cleaning brush but it smooths the inside some. I don't know how rough yours are. If these won't do it, I would go steel wool or scotchbrite.

http://www.pmatool.com/case-neck-cleaning/

 

[Joe R]

Just finished building a 300 RUM for our sons college graduation. After turning the necks just to clean up the OD I have noticed some are a little bit more "rough" on the inside, mainly due to the expander mandrel.
Even though the necks were well lubed, both during the expanding and the turning process, I still would like to "smooth" out the interior of the necks a bit.
I have used and read about wrapping a scotch brite pad around a smaller caliber brush and use a cordless drill and that has worked ok, but my main question is there a brush/ product out there that can be chucked up to a cordless to smooth out the insides?
Thanks. Dave

You can also wrap steel wool around a barrel cleaning brush and turn it a few times. For glass smooth finish, use a drill to hold the brush and spin it for about 5 seconds.

 

[hogpatrol]

^^^^^^
This

 

[Fast14riot]

Does the smooth necks increase sticktion and the chance of bonding if not lubed before seating?

 

[dave300]

Thanks guys. I must admit I most interested in the ease of the Iosso brush process, but I have to wonder if the brush would be coarse enough.
I had success with the scotchbrite pad, but it wore down fairly quickly.
OOO or OOOO I presume is what you folks use when using the steel wool/brush combination?
Thanks for the posts

 

[Joe R]

OOO or OOOO I presume is what you folks use when using the steel wool/brush combination?
Thanks for the posts

Yes.

 

[Dos XX]

I use a carbide mandrel and PMA turning oil. The inside of the necks don't get scuffed. I use the Iosso brush after I tumble and before I seat bullets.