Are you sure you are holding the gun level, flush, square to the frame? With a fair bit of pressure? Looks like the hammer is moving across the staple, which could be because it’s bent, moved through.
@Chaley started
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Are you sure you are holding the gun level, flush, square to the frame? With a fair bit of pressure? Looks like the hammer is moving across the staple, which could be because it’s bent, moved through.