Marlin 336 problem

[amadmann]

I have a Marlin 336 in 35 Rem. While sighting-in a new scope using Hornady Lever Revolution 200 gr., I had several misfires. The primers showed indentations from the firing pin but didn't fire. It occurred to me that each time a misfire had occurred, I had cocked the hammer manually from the "safe" position. After reloading the same cartridges and cycling them with the lever, each one fired normally. I had no misfires when cycling with the lever.

Is this likely a "light strike"? If so, why would they only occur when the hammer is cocked manually from the "safe"(half cocked) position? Can anybody help me out?

Thanks

 

[teeroux]

Are you sure the lever was fully in the firing position when you cocked the hammer manually and fired?

 

[hoghunting]

Have you pulled the bolt and given it a good cleaning. The firing pin channel could have a build-up of old oil, grease, or dirt that is slowing the firing pin.

 

[amadmann]

Thanks for the replies!

Teeroux, that had not occured to me. It is possible that the lever was not totally in battery position. I'll do some follow-up test firing to see about that.

And, Hoghunting, before I test fire it, I'll take it down and give the bolt and pin a good cleaning. I think the rifle had been sitting up for a long time when in the possession of a previous owner, although it was well-cared for.

Again, thanks to you both!