I have just received a second hand semi custom Ruger MKII in 458 Lott (it had never been fired). I have shot 20 rounds through it cycling fast and slow without any problems. Now I have been told that the ejectors are known to shatter? What experience do members have with this along with any recommendations?

I certainly haven't had a problem with a 77 MkII and have shot 300 or so through my .416. On top of that several thousand through smaller caliber (mostly a 7x57) with no failures. I wouldn't lose any sleep over it.

I have about 250 rounds through my RSM .458 Lott. I bought it new a few months ago.I have done the same, both fast and slow reloads and I have had zero issues. 20 rounds of factory and the rest where my reloads.

I also have a M77V .25-06 that I purchased in 1987. It is on it's second barrle and has never failed to load or eject in thousnads of rounds.

Ruger are great guns for the money. I would not worry about it at all.

I have never heard of shattering being the problem with the ejectors. The ejector is a little bit of spring loaded metal that pops up as the bolt is drawn back. The bit of metal slips into a slot in the end of the bolt face, acting as a block on one edge of the cartridge case, forcing the case out of the ejection port. This is a feature shared by all Mauser styled actions, including Win mod 70s. The problem that some older M77's (and some new ones by a few accounts) is that the ejector would not spring into the slot into the bolt fast enough to catch the case while the bolt was being pulled back. This resulted in a case being in the bolt while the bolt was slid forward, picking up the next case below and jamming. Not a good thing if you're facing DG. A little cleanup/polishing, maybe a strong spring (tuning) is the fix, and not hard to get done. If it isn't jamming, you don't have a problem. I was unable to get my M77 RSM in .458 Lott to demonstrate that problem.

Dan

You're referring to the pot-metal extractors on thr Win M70 classics before Williams started supplying then ?? 2/3 yeards ago. Charlie.

Ok. Its working well so I won't worry about it. Thanks.