simple pull through off a member on here, its like fishing line it is & it works great with some Napier patches.
if I what a bit more clean I use Anschutz Cleaning Kit 507 = http://www.intershoot.co.uk/acatalog...t-507-180.html
i clean my lg110 hft every tin ( 500 shots or so ) or a bit less if i think the groups are opening up after 45 yards.
My rifles are =
PCP: Steyr lg110 hft 2014, HW100 SK ( back up & rainy day rifle )
Springer's: HW77 ( 1980's version ), HW35 KLS.