When I signed on in 1976, I was offered use of a really beat victory model.. it rattled badly when shaken & timing was pretty iffy. If I could have taken it home, I'd have gotten it fixed up but the V model & 6 mismatched leftover rounds had to be signed out each time.
I used my nearly new M19-3 & got blueing wear despite a using a lined holster (Bianchi 5BHL). We were promised we could order M66s through the PD same as issue but I eventually figured out it wouldn't happen.
I was fortunate to find a 4" M66-1 in the LGS & bought it. I carried SuperVels in the M19 but my 66 didn't like them. Last issue ammo was Winchester 146 grain Silvertip... I was the first to carry speedloaders... Comp 1.
I carried a M36-1 & a 3" 66-2 as BO / OD.
Still have them all.
My 4" M66 still has the original non-rubber Hogues on it... I didn't care for the look but I found I could fire 6 full loads & the gun would be tighter in my hand than when I started... I didn't care how they looked anymore.

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NRA LIFE
Reserve Officer 9yrs