9mm keyholes

[TennesseeWilliams]

hey guys, just wanted to bounce some idea off you all.

Just shot some reloads from my g34, 1.05 OAL, 3.4g titegroup 124 LRN. Most of these FTE, i loaded low on purpose to test functionality. These work fine in an sr9c, so it may be the slow load causing the keyhole. Not sure. That's the first question.

2nd. I'm growing a bit weary of titegroup and am wondering what you all use for good 9mm lead loads. i've seen a lot of w231 being mentioned. Would love to have something that shoots well out of the g34 if anyone has experience with that. Thanks in advance.

 

[lowendgenerator]

Keyholing and FTE are both symptoms of a low charge. I can especially see this being the case in a longslide like a 34. Bump up the charge and see what happens.

 

[TennesseeWilliams]

that makes sense. I'm hesitant to run much more titegroup in fear of leading, though. Anyone have experience with it in 9?

 

[Double T]

that makes sense. I'm hesitant to run much more titegroup in fear of leading, though. Anyone have experience with it in 9?

If you are going to cast and run a glock, get an aftermarket barrel. Leading in polygonal barrels is a debatable thing. Some people get huge amounts of leading after 20 rounds, others more.

best to be safe and get a traditional land/groove barrel. The leading comes from the barrel swaging the bullet in polygonal rifling, and it is best to be safe than sorry. Spend a hundred bucks, and call it a day

 

[TennesseeWilliams]

If you are going to cast and run a glock, get an aftermarket barrel. Leading in polygonal barrels is a debatable thing. Some people get huge amounts of leading after 20 rounds, others more.

best to be safe and get a traditional land/groove barrel. The leading comes from the barrel swaging the bullet in polygonal rifling, and it is best to be safe than sorry. Spend a hundred bucks, and call it a day

i was going to look into that. I've seen some traces on the sr9c, however, so i was going to look into a cooler powder in addition to a new glock barrel.

 

[bass pro]

I use tightgroup for 9mm and 40 at 4.3g with no problems. I have run many thousands of rounds with this setup. 9mm at 115g and 40 at 155g

 

[TennesseeWilliams]

I use tightgroup for 9mm and 40 at 4.3g with no problems. I have run many thousands of rounds with this setup. 9mm at 115g and 40 at 155g

do you use cast bullets? if so are they round nose and what OAL? thanks