Just saw the topic
https://www.airgunnation.com/topic/impact-shooting-slugs/
Ahh but it was a 26gn slug no 28gn, 700mm barrel (not available), and that spacer, now it make more sense ... that spacer should be very easy to make
I've been toying with just replacing the pur 90 oring (acting as the hammer bump) with a thicker one. Wonder if that would accomplish the same thing? I have to replace it anyway because it split. Like now there are 2 "donuts" and I lost about 160 fps on the same tune.
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