Written on: 25/09/2010
s410 brill, but weak barrel/barrel band.
early ones have no safety catch and normal non security screws.
later have security (nippled torx) these are easy solve....go to your hardwear or diy store and buy a bit set!
your transfer port restricting screw can be wound out giving a max of 2-3flb increase.
apart from that you need to buy a full seal kit. strip the gun slowly and carefully, CHAMBERS GUNSMITHS web site has exploded diagrams if you get stuck,
oh and dont panic you will see on there site all the full factory parts that are needed to convert to 28-30ftlb, this is hard complexted and thay want to see a FAC!
have a butchers at the original butchers web site......TR ROBB...buy his hammer spring kit, it comes with loads of dummy springs the longest thick one will give you 18ftlbs and the thickist short one is the one to use!
22ftlbs on mine, this gives me 40 good full power flat trajectory shooting