Remington 700 Ejector Fix

C

cdupuy

New member
Have had a bunch of the 700, 721, 722 Remington actions and all seem to have the same fingerprint of the ejector hole on the cases when fired. I have lately extended the bottom of the ejector stem and stopped the ejector at the level of the Bolt recess, I did not get the level precisely flush and this resulted in a quarter circle on the head of the case.
Has anyone had success with the elimination of this fingerprint on the cases? there are no signs of pressure, no bolt lift problems and normal loading.
 
If you see a bright brass circle on your case heads after they have been fired, it came from the pressure being so high that the head was extruded slightly into the ejector hole, and then struck off by the edge of the hole when the bolt was opened. This is a pressure sign. One other thing can cause this, a lubed chamber, combined with some gap space.
 
Boyd the pressures are within normal loads, the quarry is that the Pushfeed Winchesters do not exhibit this condition with like loading and the same type of ejector hole. I don't shoot hot stuff except in the Palma Rifles.

A bit of background I shot the Palma game for 17 years with Winchesters both Pre and Post model 70 and know what it takes to safely hold pressures to send the 155SMK to 1K at 3000 in the 308.
 
The same principle as a smaller firing pin works with ejector pins as well. A smaller diameter ejector pin hole will allow more pressure to be used before you have ejector marks on the case head. Also, where the ejector hole is located will make a difference as well. If the full diameter of the ejector hole is inside the bolt face, you'll have more problems with ejector marks on the brass than if half of the ejector hole is in the bolt face and the other half is outside the bolt face. A Remington ejector pin is about .140" in diameter. I think a AR-15 ejector pin is 3/32". I had a personal custom actioned benchrest rifle that had a Remington ejector with all of the ejector pin inside the bolt face. It would cause ejector marks on PPC brass with less than what would be current normal loads for a 6 PPC. I plugged the ejector hole and moved the ejector pin over to where half of it was in the bolt face and the other half outside the bolt face and used a Bat ejector pin. No more problem with ejector marks on the brass. However, it's just like bushing a firing pin hole, you are doing away with a pressure sign and have to watch for other pressure signs such as sticky bolts. IMO having the full diameter of the ejector pin inside the bolt face is bad design. Easier to drill there, but can give functioning problems especially with hot loads. I wouldn't plug an ejector hole and move it for someone else because of the risk involved in today's litigous climate.
 
Thanks for the reply Mark, the idea is sound and I will approach that method. I do not use the large firing pin in any of my target rifles due to the primer blanking of the large loose pin's. This Remington bolt thrust and the subsequent Ejector mark is out of order and would rather sense pressures with the Bolt.
 
When you say "I did not get it precisely flush", is the ejector plunger proud of the bolt face when completely compressed or slightly below the surface?
 
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