Sizing cartridge cases
Sizing cartridge cases Setting the bench-rest neck sizer die Since the amount of force required during neck sizing is very small, it must be possible to feed the cartridge case into the die without resistance. If, nevertheless, resistance exists, then the cartridge case is too large in comparison to the die. The die must then be adjusted, which we will be happy to do for you. Description Set the correct case holder in the press punch. Move the press punch to the top position. Screw the Bench-rest neck sizer die into the press until the outer die body contacts the case holder. Measure the height of the cartridge base and set the spindle so that it does not contact the cartridge base. Position the spindle using the interior sizer and the ejector pin so that it is located in the center. Set the interior sizer so that it does not sit too far up on the spindle. Grease the exterior of the cartridge case and the interior of the case neck (e.g., with a grease pad) and insert it into the case holder. Move the press lever back again and remove the cartridge case. Check the dimensional accuracy of the cartridge case. Notes The case holder must fit as precisely as possible. Since the edges of the cartridge cases of different manufacturers can have different dimensions, case holders that are adapted to this condition also exist. If the edge of the cartridge is not guided correctly, there is a risk of it rupturing. A considerable amount of effort is then required to remove the cartridge case. Trial and error is usually the only approach here. If an accident of this type should happen to you, please contact our customer service so that we can rescue the die with as little damage as possible. When the cartridge case is inserted, there must be a gap between the case holder and the die body at top dead center. This prevents a pressure buildup that could result in damage. Check the distance. The spindle could be damaged if there is contact with the cartridge base. The spindle must not contact the cartridge base. The spindle and the knurled sleeve could be damaged. The interior sizer could reach into the area of the case neck, in particular on cartridge cases with a very short powder chamber. The interior sizer must be positioned so that it slides without resistance when the cartridge case moves upwards and that it expands the cartridge case only during the downward stroke. Cartridge cases that have not been greased may jam in the die. Too much grease on cartridge cases can result in dents in the cartridge cases. Clean the cartridge case after sizing. The press and the Bench-rest neck sizer die are now set and you can size additional cartridge cases. www.triebel-guntools.de 20/37 User Manual-2.0
Sizing cartridge cases Multi-neck sizer die The multi-neck sizer die sizes the spent cartridge case at the case neck. The multi-neck sizer die consists of the die body, the hardened neck sizer ring, two distance bushings, the spindle with the interior sizer (expander), the nut and counter nut, and the ejector pin with sleeve nut. The exterior is sized when the cartridge case is pressed into the die. The interior of the case neck is sized when the case is removed from the die. This achieves a consistent bullet seat. The neck sizer ring is installed in the bottom position for short cartridge cases. For longer cartridge cases, one or both of the distance bushings can be exchanged in a downward direction as required. If the neck sizer ring is installed in the bottom position, then the interior sizer must also be screwed downwards. Individual parts of the multi-neck sizer die 1 Ejector pin 2 Knurled sleeve 3 Interior sizer (expander) 4 Counter nut with spindle 5 Spindle counter nut 6 Distance bushings 7 Multi-neck sizer ring 8 Counter nut 9 Die body www.triebel-guntools.de 21/37 User Manual-2.0
