I have a HW100S, It seems to go well with RWS Hobby Sport line, and RWS Superdomes,...

I have just purchased a selection of .177 'testers' from Pellpax,... and will publish results after trials, however,... HELP!!!
There is a packet of 'H&N copper point, 7.5 Gramme' in there, will they be OK in my barrel??? newbie here, not too sure if I can use them without risk to barrel??
Thanks guys, Fred