Dillon 550 Index Ball Size

[dangertree]

Hello,
I seem to have lost the index ball bearing for my Dillon 550B. Would someone be able to measure this ball so I can try and replace it locally? Thanks in advance.
DT

 

[pmt]

Hello,
I seem to have lost the index ball bearing for my Dillon 550B. Would someone be able to measure this ball so I can try and replace it locally? Thanks in advance.
DT

It's .375" (3/8") Buy yourself a spare parts kit - there's one in there.

http://www.dillonprecision.com/#/content/p/9/pid/23609/catid/3/RL_550B_Spare_Parts_Kit