BEFORE ordering, measure the length of the shoulder of your bolt shoulder. If if it is 3/4” long this will work for your RL-1100 and Super-1050. However, if it measures 7/8”, this will not work for your machine Dillon made a rolling change without a way to identify without measuring.
Greaseable Primer Pivot Shoulder Bolt to replace Dillon part #13276
You no longer needs to be removed the shoulder bolt for maintenance. Just pump a squirt of grease in using the included grease zerk.
The bolt is made in the USA from American Hardened 4140 Chromoly Steel for a long service life.