As recently posted here in this section, I just acquired an Eddystone "Model of 1917" that was sold to me as chambered in .303 Brit, but with a little digging and the help of this forum, was found to actually be 30-06. Found it holds 6 rounds plus one in the chamber. So I put 7 rounds in the rifle and cycled (without firing) through all 7 fine . Did that with several brands, some milsurp, PPU, some Hornady... but found that once in a while the bolt seems to malfunction by not closing all the way. It's as if the round was to long. But that same round WOULD sometimes close fine when fed. When it DOES close it closes fine, smooth as silk, but then all of a sudden it will simply refuse to close. This doesn't make any sense to me. It isn't the ammo, as it does this with all different brass. Sometimes yes, sometimes no. What's possibly wrong with this bolt?