I do not know why some get the problem I raised and others don't. Perhaps the drums are manufactured on different machines and as such perhaps one machine has a different tolerance than another. Perhaps one CNC machine is producing these drums which produces a slight "interference" fit with the pell...

Thanks for your reply and suggestion. It is not a user problem it is a design failure to take into account that the rifle maybe used and loaded with the muzzle inclined upwards. As I mentioned before AA have acknowledged the problem I raised with them, so hopefully they will come up with magazine mo...

When putting a magazine into the rifle I only fill it with 9 pellets. The chamber opposite the breech is left empty. I then just dry fire the empty chamber so the rifle is sitting uncocked. It must be noted It is not just the next pellet which slides forward between the drum and the clear front cove...

Yes the magazines I use are air arms as is the pellets.

The purpose of the O ring is simply to stop the pellet sliding out the rear of the magazine. Its function is not to physically hold the pellet in place. I will though try what you suggest and push the pellets slightly further back into the drum where it can be gripped by the O ring. It is a botched ...

The pellets I am using are Air Arms Field. In both my S510's in .22 and .177 use AA pellets. You would expect these rifles to be capable of working properly with these, but no they slide forward and stop the rotation of the drum as the pellets try to come out of the front loading hole in the magazin...

Major problem with Air Arms mutli - magazine when trying to index a pellet when the rifle barrel is at an upward incline. As you try to index a pellet it slides forward and interferes with the clear front casing. As a result the magazine rotation is stopped and next pellet cannot be indexed into the...

Thanks for the feedback concerning leading the barrel. I was aware of this, but I have tried firing alternate gauge pellets through the rifle, one shot with 5.51 and then the next with 5.52, so fourth and so fourth and the difference of 15 fps is still there. The pellets from the tins marked 5.51 an...

I have an S510 in .22, which I bought new...... Initially when I started using it I started using AA Field in size 5.51. I will call this tin A The rifle seemed to like this tin of pellets so I reordered two tins of the same make and size from the same supplier, call these tins B and C. .... When I ...

Hi Many thanks........I have an HW 100 , in .177. In cold weather if the rifle has been outside for a while it gives 740 fps (10.27). If the gun is taken and checked when at room temperature it gives 778 (11.35). Knew this output change was a problem with the HW, but was not sure about similar S510....