Will Alloy pellets of 6.64 gr damage a 1000 FPS rifle's piston seal ?

[Alanheal]

Greetings,

Will Alloy pellets of 6.64 gr damage a 1000 FPS rifle's piston seal due to their low weight?

[Back_Roads]

 That should be fine, most likely that is heavier than the pellet they used to get that test velocity. if you hear a sonic crack then your gun was tested with a lighter lead pellet 7.5 gr range I would assume.

[splitbeing]

That should be fine, most likely that is heavier than the pellet they used to get that test velocity. if you hear a sonic crack then your gun was tested with a lighter lead pellet 7.5 gr range I would assume.

x2