Plumb with line, machine level and barrel scope level and EXD Engineering Vertical Reticle Instrument. It help to drop the plumb line about 25 yards away. Make usr you use a claen white plumb line. | |
Sony DSC-P72 Full EXIF / IPTC Photo 6 of 11, Scope Alignment tools 001.jpg, 78KB, 640x480, 1145 Hits Other Sizes: Medium Original | |
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