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Barry loyd
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It’s rougher looking than most rifling. The gun is brand new and I’m sure hi point uses a less expensive rifling process.
9mm carbine keyholing.
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Barry loyd
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They are dropping at .357-.358. I brought my good calipers home from work to make sure.
wrench459
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I took a stab at measuring my 995ts twist rate.
Used a loose fitting jag with a patch...seems to be ~one turn per 10 inches
Elkins45
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I had the same problem with the TC version of the tumble lube bullet in handguns. In a carbine it was just laughable.
Water dropping them fixed it.
Water dropping them fixed it.
Average Joe
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Bullet may be to skinny, go up to a fatter bullet.
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Barry loyd
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Thanks for all the replies and suggestions. The new bullet works very well in the carbine as you can see. Tried them both sized and cast. There wasn’t a real decernible difference between sized and as cast. The as cast did shave lead during seating. Since I don’t have a FCD yet it will have to do. All shots were from 30ft. CFE Pistol in .2gr increments with OAL 1.12. Starting at 4.4 and working up to 5gr. All loads are published data.
Hondo 60
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No carbine, but I had a C9 that hated factory 115gr anything RN, Conical, HP, etc.
But did GREAT with all manner of 124/125 gr.
Just had a longer bearing surface
But did GREAT with all manner of 124/125 gr.
Just had a longer bearing surface
rfwobbly
Member
Another common cause... Your bullets may be correctly sized, but if you use an incorrectly adjusted Lee Factory Crimp Die, then your over-sized bullets could be swagged back down to an incompatible size. So it's not so important what diameter bullet you are buying, but what diameter bullet you're loading into your chamber.
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Barry loyd
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I don’t have a FCD. The tumble lube bullet was the cause of the keyholing.
FROGO207
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Glad you found out what the problem was. I have no TL bullet molds and until now had not heard of this problem happening.Always learning something on here I swear.
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Barry loyd
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The TL bullets work like a charm for my 38/357 loads.Glad you found out what the problem was. I have no TL bullet molds and until now had not heard of this problem happening.Always learning something on here I swear.
The carbide ring can squeeze down a bullet and hurt neck tension depending on the ID of the ring, case wall thickness, and bullet size, regardless of how it is adjusted. If someone adjusts the taper "crimp" part of the FCD incorrectly (Too far down), then it can hurt neck tension/swage down bullets, but one can do that with any taper "crimp" die.
The second part is spot on.
Toprudder
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I am a fan of the Lee FCD, but I can't use the one for 44 mag as it does try to resize the bullets smaller. For 44 mag, I use the Lee collet crimper instead as it does not have a carbide sizing ring. They don't make one for 9mm, though.
Dudedog
Contributing Member
And I thought I was the only person in the world that liked the Lee FCD! (and would admit it)
Don't like it in all calibers but do for 9mm.
Don't like it in all calibers but do for 9mm.
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