Got one recently and it works, however, the way the ROA cylinder is, the cam action of the device is right where the slider changes direction, so the collar can't be used. To set the collar at the ball just inside the cylinder, the thing won't release enough (raise the arm) to get another ball between the cylinder and the jag. I'm talking with the maker and he's going to get back with me. It seems like the jag plunger should be about 1/4" or so shorter, then the cam action would be more or less horizontal instead of where it tends to bind.
I ordered a straight line toggle clamp, thinking I may just make my own to fit exactly what I want. ROA is the only cylinder I load BP. The toggle clamp has an internal thread (5/16 I think) for the press so a bolt could be used for different lengths of jags. https://www.ebay.com/itm/Straight-L...DeStaCo-630/223200882245?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
I think the toggle clamp method is a better idea than these straight arm presses with a sliding driver.
I ordered a straight line toggle clamp, thinking I may just make my own to fit exactly what I want. ROA is the only cylinder I load BP. The toggle clamp has an internal thread (5/16 I think) for the press so a bolt could be used for different lengths of jags. https://www.ebay.com/itm/Straight-L...DeStaCo-630/223200882245?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649
I think the toggle clamp method is a better idea than these straight arm presses with a sliding driver.