Hello:
Spent two days,with Larry Romano in his shop just before Easter tweaking guns.
My mint Romano Spencers were balky and wouldn't cycle my dummy rounds consistently, even with OAL's rangjng between 1.500" and 1.600" using RMC cases that were 1.170" and his usual 315 gr. Single grease groove bullet cast in wheel weights. We test cycled my three Romano Spencers. Interestingly, he has dummy rounds using his 315 gr, single grease groove bullet, that VARIED in OAL between 1.400" and 1.600". He mixed these OAL'S and they fed well! He shared that he deliberately uses mixed OAL's to be sure that most anything will feed. Ok, he still suggests 1.550".
It took him less than a minute to diagnose MY problem --- my crimps were NOT sufficient and created a case crimp diameter that was a bit tight in his TIGHT chambers. He tightened my crimp and my EMPTY dummies fed well.
One other tip: DO NOT USE LOADED ROUNDS FOR TEST CYCLING! When test cycling to diagnose balky cycling, one can be a bit more forceful and cause a fed, UNFIRED round to eject and jam HARD against the NOSE of the cartridge guide. This amounts to significant contact with the PRIMER! NOT GOOD!
Respectfully,
Kevin/El Supremo