Slotted cleaning tips. Nylon or brass?

[rogersmithiii]

My .22 slotted tip ripped out of the cleaning cable. Noticed eBay selling brass slotted tips instead of nylon.

Which is preferable and why?

 

[Fritz the Cat]

brass. they're more durable.
I have my grandfather's cleaning kit. all brass. it's from the 40's

 

[Waher]

Nylon eventually wears out and may be ruined by some bore solvents. Brass won't damage a barrel and last longer.