Gamo lead balls can be very variable. I've tried them in my Webley and they are no better than steel bbs and definitely worse than pellets.
The Webley is hardly a target pistol, but as far as possible,I do like inaccuracy to be due to me, rather than the gun.
Ian
I think i`m going to get some DW cartridges and shorten and convert those for pellet firing ... Gordon.
Gamo rlb are very tight in the bore of my Webley. You should be using steel bb or H&N copper coated rlb in 4.4mm.
These are a perfect fit and shoot the tightest groups of all the bb I have tried.
Pete.