So I was out at the range the other week and make a mistake and left oil in the barrel from short term storage. Luckily nothing serious happened but it was definitely a learning experience. I just slide two clean patches down the barrel and never saw another pressure sign. However, I now have ejector marks on two pieces of brass. Is it still ok to use or has it been structurally compromised in some way?
Ejector Marked Brass
- Thread starter Bluesop7
- Start date
Re: Ejector Marked Brass
You are probably ok. The extra lube in the chamber prevented the brass cartridge walls from gripping the chamber, thereby allowing the base of the case to slam into the bolt face harder than normal.
You are probably ok. The extra lube in the chamber prevented the brass cartridge walls from gripping the chamber, thereby allowing the base of the case to slam into the bolt face harder than normal.
Re: Ejector Marked Brass
What you got is called bolt slap. When the pressure rose, and the brass expanded to grap the chamber wall, the residual oil prevented the gasket from grabbing hold, and the case is rammed back on the bolt with the full force of the pressure cycle behind it. This generally blows all the residual oil from the chamber and it generally gets on your safety glasses as it blow out of the ejection port.
The case did not see high pressures, but the high velocity impact with the bolt face makes it appear as if it had seen high pressure signs.
What you got is called bolt slap. When the pressure rose, and the brass expanded to grap the chamber wall, the residual oil prevented the gasket from grabbing hold, and the case is rammed back on the bolt with the full force of the pressure cycle behind it. This generally blows all the residual oil from the chamber and it generally gets on your safety glasses as it blow out of the ejection port.
The case did not see high pressures, but the high velocity impact with the bolt face makes it appear as if it had seen high pressure signs.
Re: Ejector Marked Brass
Thanks guys, that makes me feel better. I'll just set them aside so I can be sure and pay close attention when priming those two cases.
Thanks guys, that makes me feel better. I'll just set them aside so I can be sure and pay close attention when priming those two cases.
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