My 505 Gibbs MRC PH feeds, extracts and ejects like a champ. The ejected cases go 12-15 ft to the right when I run the bolt at speed. However, the case mouths get dented. I think the case does a 180 degree turn when it contacts the ejector and the mouth hits the rear receiver bridge. Not really a problem but a bit annoying and it requires some careful resizing work. Is there a solution other than running the bolt slow? Shortening the ejector .010-.020" comes to mind but will that mess up the function?

That's some serious case damage.

Can't really say one way or another other than to say my MRC 1999 in .375 will throw brass 30 FEET to the right with a healthy stroke.

I cover the bolt at the range and work it slowly. Even a gentle stroke will pitch brass 5 feet and if I'm not paying attention I've pinged the shooters next to me.

In all candor, I'd rather a rifle throw brass and beat it into the ground than not eject at all.

I agree

That is some kind of irritating to a reloader.

What type of ejector is on a MRC action; Is the fixed blade on the side like a Mauser or the bottom like a pre 64 Win 70?

I would get a spare in hand before shortening?

Is that action fully suited to a 505? Pre 64 Win 70's in H&H calibers have ejector port mods, nearly 1/4" in the front and about .025" or so in the rear.

Airgun, the PH is a larger than standard action.

quote:

Originally posted by airgun1:
That is some kind of irritating to a reloader.

What type of ejector is on a MRC action; Is the fixed blade on the side like a Mauser or the bottom like a pre 64 Win 70?

I would get a spare in hand before shortening?

Is that action fully suited to a 505? Pre 64 Win 70's in H&H calibers have ejector port mods, nearly 1/4" in the front and about .025" or so in the rear.

Yep, fixed blade like a Mauser or M70, and overgrown enough to fit the .505 Gibbs rim without skeletonizing the boltface.
Same for li'l bro .408 Chey-Tac, a mere popgun:










Here is the spec sheet MRC put out before they decided to do the CZ dovetails as integral scope base:



Eyeball indication of the size of the action, retaining and feeding 3.980" COL,
even flat nose GSC FNs, or Barnes .416 TSX sized down to .408.
My measure of box inside length was 4.070" with the action at hand:

Problem at hand:
No problem for DGR use for real, just eject slowly if you want to reload them,
and go very carefully if you want to shorten that ejector blade.
Many M70s do that too.

"Flare" the mouths back open using a loaded round (or dummy with just a bullet seated). You probably already thought of that...

I don't think shortening the ejector blade will make any difference, looking at the area where the case mouth is hitting and the force it is hitting to do that damage it is more an issue of the extractor holding the case head too tightly and delaying letting it go when the blade hits the case head to the point where the case is turned 180 degrees and only dislodged when the mouth slams into the side of the rear bridge. Look to see where the extractor lip is sitting against the side of the case head when the case is on the bolt face. Maybe the extractor blade is too thick.
Here is what my Mauser bolt looks like with a 404 cartridge held against the bolt face and it ejects loaded rounds and cases positively and perfectly.

My MRC 458 Lott does the same thing, not nearly as dented though, and only in one spot. And only when cycling the bolt fast.

I would stretch a ring of bicycle inner tube around the rear bridge and stock for quick cycling in practice instead of modifying parts.