Remington UMC 147 gr. question

[Roscoe2212]

I got a few boxes of the above round, and while loading them, I noticed most of the cases have a very
faint ring around the middle of the brass, almost like a sizing die was jammed too far into the brass.
The bullets are flat nosed, but I can't see what that would have to do with it.  I MIGHT be able to photograph the ring, but don't bet on my skills there. 
Anybody have an answer for this?? Doesn't look unsafe, just odd.

[SoCal]

Do they pass the plunk and spin test?

A picture would help, a faint ring is not uncommon with 147 gr bullets BUT more info would help.

[Fuzzy Sights]

147 gr bullets are long and they may have been seated so deep that they are engaging the leading edge of the case web, which can caused a faint ring on the outside.  Don't shoot remington, but I have seen this on other 147gr loads.  As long as they pass the "plunk and twist test" they are probably fine.  Would check the first round or two fired just to be sure.

Good luck, hope this helped.

JW

[Wobbly]

As long as they pass the "plunk and twist test" they are probably fine.  Would check the first round or two fired just to be sure.

1) And that's the first thing to do. Remove the barrel from the gun, drop 3 to 5 cartridges into the chamber, push them in, and try to spin them inside the chamber. If they spin freely, then regardless of what they look like, they are OK to shoot. If there is any resistance at all, then they could be dangerous to shoot.

This is all covered in the Stickies at the top of the forum. However, you should read and fully understand THIS ARTICLE.


2) Some high-end ammo comes with a cannelure embossed on the outside of the case. This is to help with 'bullet set back'. It's simply a feature they install to add value to the ammo.


Hope this helps.

[Roscoe2212]

Ok, passed plunk and spin no problem.  Thanks guys.

[bonj]

good info. Never heard of the plunk and twist test. Makes sense.

[M1A4ME]

When I was using Lee 9MM dies even the 115 grain bullets left that ring formed by the base of the bullet as it was seated down into the case.  Some 9MM dies really squeeze the brass down.

[George16]

When I was using Lee 9MM dies even the 115 grain bullets left that ring formed by the base of the bullet as it was seated down into the case.  Some 9MM dies really squeeze the brass down.

Lee/EGW Undersize die and Redding sizing die sizes the case .003” and .002” smaller than the typical sizing die according to Lee/EGW and Redding respectively. I use both theLee Udie and Redding sizing die and can definitely tell the difference.

These dies help in preventing bullet setback especially for major rounds that have an OAL around 1.165”-1.170”.