I have several partial boxes of molly bullets. I don’t like them because they are all but impossible to clean out off bore.
It is the opposite. The problem is that before you use moly coated bullets the barrel must be cleaned of all copper fouling first. Moly will allow the bullet to squeeze down the barrel easier and leave it much cleaner after your shooting session. When shooting moly from our Service Rifles we did notice a slight drop in velocity for a given load which is due to less pressure needed to push the bullet down the barrel. If your sight dope is set to a specific velocuty (like 2800 fps) then you may need to add a tad more powder to bring the speed back up so that your dope tables work correctly.I was told several years ago that moly coated bullets make the barrel very difficult to clean. I cannot comment on personal experience, just hearsay. There is a lot of better informed people here than me.
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