They last sbout 1/2 a tin of cphp pelletd maybe a full tinReceived these in mail today.
Yes they were purposely purchased to get torture tested on a gas ram rifle.
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I bought 3 on a sale at walmart . 2 cross hairs broke ( the hair part snapped) . Ome the turrets rattled loose and fell out ..
Its a shame cause before they spit the bit i really liked them
Glass was nice clear bright and mil dot croshair was just right . . All zeroed soot on , but ..
I still got one i missed the return date.. it one of the broken croshair scopes.

Now I cant say if pcp is best. But gas ram / gamo / hatsan break barrel = fast failure... Spring like hw / r9 break barrel fast fail .
Maybe yours are better built ones
. Good luck
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