Ranger T?s hanging up on the case mouth

[Kenk]

I?ve been been having issues running 230gr Ranger T ammo, +P, as well as standard pressure loads in my G30S, and are hanging up on the case mouth right above the feed ramp. Also, this does not appear to be a magazine issue, as it has happened with 4 or 5 different magazines. In addition, I?ve pretty much ruled out limp wristing, as stove pipeing is often the result of that. From what I understand, it could be the extractor, but don?t know beyond that. When I run 230gr ball, the G30 runs flawlessly. Because I have a bunch of T?s on hand, I would really like to get this figure out. I will try some 230gr HST?s and  golden saber?s to see if it?s Ranger specific.?Thoughts?

[RickShooster]

Is this an ejection problem?  Is the case mouth catching/lodging against the barrel hood?

[Kenk]

Hey Rick, nope, the brass ejects just fine, it happens when the first, third, or other rd is being chambered, it?s like it gets lodged going up the ramp
Thanks

Ken

[RickShooster]

I don't know if this will help you, but it can't hurt.  On the barrels I install or when I have any problem like this, I always like to have a well polished feed ramp and also polish the chamber especially under the  hood where the bullet is likely to strike during feeding.  Some new barrels come with machine  marks every where and those are really not helping things. You want the ramp and chamber contact areas smooth and shiny something like  this.  On 1911s, I would always polish the ramp and chamber contact areas to a mirror finish. 

Another thing, if the case mouth is not crimped at all, it could be hanging up more so than a good, factory or tapered crimp case would.  I resize and taper crimp all my rounds after bullet seating as a separate stage because tight chamber tolerances (unlike loose Glock chambers) are/can be finicky about case mouth dimension.  I often go so far as to plunk test every round to make damn sure they chamber properly.  That seems especially relevant with 10mm and after market barrels.   

I?ve been been having issues running 230gr Ranger T ammo, +P, as well as standard pressure loads in my G30S, and are hanging up on the case mouth right above the feed ramp. Also, this does not appear to be a magazine issue, as it has happened with 4 or 5 different magazines. In addition, I?ve pretty much ruled out limp wristing, as stove pipeing is often the result of that. From what I understand, it could be the extractor, but don?t know beyond that. When I run 230gr ball, the G30 runs flawlessly. Because I have a bunch of T?s on hand, I would really like to get this figure out. I will try some 230gr HST?s and  golden saber?s to see if it?s Ranger specific.?Thoughts?

[Kenk]

Thanks Rick, last night I gently polished the feed ramp, as well as the barrel throat area with a wool bob and some Flitz polishing compound, keeping the dermal on the lowest possible speed (pretty much exactly as your suggested) I also disassembled and cleaned two of my 10rd mags, only to find the mag insert in both were sitting kinda cockeyed. To make a long story a bit shorter, the G30S functioned perfectly today at the range. I tested 3 mags of each of the following; Winchester Ranger T 230gr +P, Remington Golden Saber 185gr +P, and Federal HST 230gr +P. I?m not sure if it was the polishing, or the mag cockeyedness, which it likely was, or a combination of the both, but I?ll take it. Once I?ve run a 100 or more T?s with zero malfunctions, I think I?ll be comfortable carrying it again.

[RickShooster]

Sounds like you're getting it back on track, good luck! 

[Kenk]

Absolutely, Thanks Rick!

[Kenk]

It?s kind of interesting with the G30S running +P loads, and how the snappiness and  felt recoil / impulse is substantially more, and very different than hot Underwood loads in my P220 Elite. Granted the P220 is a much weightier weapon, I just found it fascinating how different they are.

[Kenk]

I called Glock yesterday and told them about the issue. They said just send it in and we?ll replace all needed parts at no charge, all I have to do is pay one way shipping. So I did, hopefully it won?t take months to get it back