This is a follow on thread to mine below about the CW9 trigger cutting my finger and how I "fixed" it so that it was useable.

The current topic is an inability to feed hollow points, specifically Speer Gold Dot 147 and Federal HydraShock 147.

Having "cured" the trigger problems, I took the CW9 out this afternoon with the four magazines I have for it to try hollow point ammo.

When the Kahr booklet says you better try 100 rounds of business ammo after a 200 round break in with whatever ammo, YOU HAD BETTER BELIEVE THEM THAT ANY HOLLOW POINT NEEDS A REAL TEST.

I had bought a 100 rounds each of the two ammos above. Expensive stuff. Pretty standard high quality stuff that I have never heard or seen of failing to function in a Glock.

Each of the four magazines with each of the two ammos experienced 2 or 3 failures to feed per magazine. One magazine was far worse than the other three.

The failure mode is that any round that popped up high enough to hit the underneath side of the barrel hood got stuck there wide open. Under the hood, but not into the chamber.

The reason is that as you look at the barrel from the primer end right side up hood on top, there is a "throating" done at the maybe 5 O'Clock to 7 O'Clock area. From 7 O'Clock to 11 O'Clock the edge of the breech is rounded into the chamber less than the throating, but rounded and polished. Like wise from 5 O'Clock back up to about 1:30 O'Clock, the breech is rounded into the chamber and polished.

Under the barrel hood, from about 12 O'Clock to 1:30 O'Clock, there is a sharp edged ledge where the barrel ends and the hood starts. The ledge gets taller as it goes clockwise.

Both the Gold Dots and HydraShocks would hit the ledge and the sharp edge of the hollow point would stop on the ledge.

The one magazine that was worse than the other three actually let rounds pop so high that a couple got stuck on the back side of the barrel hood. They never even got under it. This was a brand new magazine in a pair just received not used before. All four are the new style with the "9-7" and "Kahr" up in the middle of the side.

My guess is that no WIDE hollow point or SHARP mouthed hollow point will make it past this ledge. The ledge is compounded by how the Kahr magazines have a lower right side and let the round move to the right as they exit the magazine. The ledge stops them before they get back to center.

It just looks stupid how the back of the barrel is rounded into the chamber and polished all the way around except for the one place that the hollow points seem to hit. Under the barrel hood. It isn't that this area was poorly or inadequately rounded or polished, it was untouched and still has machining marks.

So having shot 200 rounds without a single malfunction using RN ammo, I suddenly find I have a paper weight using hollow points. Bad on Kahr.

They are not kidding about testing your business ammo. Working with RN don't mean Jack Manure.

Back to square one. A choke-a-matic.

Yeah, well, that's all well and good. An exotic ammo not available at WallyWorld or any where else in the common land.

I would think these things should work with regular stuff, not plastic ball round nose.

I am trying to figure out what to do with it.

The ledge under the hood seems a good candidate for a grind and buff job by the Dremel tool. Got to practice some before I use that. And figure out which wheels do what. Cheaper than FedEx back to Kahr only for them to create some other problem.

The more I suffer through this Kahr, the more I am starting to think I screwed up. Maybe there is a Kahr page like the factory KelTec page that tells you how to "fluff and buff" them before use. Like a kit gun you get to finish yourself.

Look under your barrel hoods and see if there is a raw machined shelf that runs from thin centered over the top of the chamber to a thick shelf toward the right side. Not polished, not throated, just raw machine cutting perfectly square. Mine, my luck, won't get the mouth of the JHP past it 2-3-4 times a magazine.

The 124 and 147 nose profile of GDs is virtually the same.

Progress, I guess. Dremeling away the right angle sharp ledge under the barrel hood and then polishing the Hello out of the under side of the barrel hood resulted in 50 rounds of Federal 147 grain HydraShock working perfectly. Also 25 rounds of Hornady 135 grain Critical Duty ammo went through it perfectly.

This was through three magazines. The fourth one clearly not formed the same way on the right side lip is on the way back to where I bought it from for replacement. There was no point in shooting or "bending" a screwed up from the Kahr factory magazine.

The three magazines I used today worked perfectly.

The surprise of the day was WW115FMJRN from WallyWorld. It fired an 8 shot group at 15 yards rested of 2" and it looked like a group dead center point of aim.

Every other ammo tried at 15 yards rested has made 4-5-6" groups for 8 shots. Some looked as if they might do better, but really never did.

Bullets heavier than the 115WW walked up and left away from dead zero.

My CW9 runs these like a champ. Kahrs are very susceptible to limp wristing..check your grip.

The only HP i've ever had problems with is regular Corbon 9mm HP. I've shot plenty of Golden Saber, Hydro-Shock, WWB HP, and other miscellaneous brands without issue.

Glad you got it running.

Use the 1/2 inch dremel felt wheels. I use these and the larger ones as well with Mothers Mag and Aluminum polish and get and AMAZING mirror shine on all critical parts. You can get the Mothers polish at any Auto stores or Wal-Mart.

I took mine straight out of the box and fired 150 rounds of Black Hill 115jhp, 147gr Ranger T and Winchester 147GR PDX1. I forgot to put some fmj in to my range bag. The next time I was off I put 400 rounds of Tula 115fmj between three shooters. No problem with the gun. I then gave it its first cleaning.

Since then I have put about 400 rounds of 125gr lrn some using W231 and most with Winchester Action Pistol since I have about 9 pounds left after they dc it in the late 1990's. I also loaded up some 115gr Winchester jhp a little on the hot side with the WAP powder.

I have some 147gr Gold Dot, 124 and 147 Golden Saber, and Winchester 115jhp and SXT bullets. I think I will use WAP powder to load these also.