Trouble with 9MM Flat Nose

[PO2Hammer]

Yup, must plunk and twist in all chambers.
I like the 124 HBFP-TP quite a bit.
I load them to 1.045" in my un-throated Kimber, that's within .010" of the rifling.

 

[Walkalong]

The Plunk Test

 

[Fishingted]

Yup, must plunk and twist in all chambers.
I like the 124 HBFP-TP quite a bit.
I load them to 1.045" in my un-throated Kimber, that's within .010" of the rifling.

Thanks!!!!

 

[forrest r]

What forrest r has described is a situation where the bullet is jammed into the lands when or before the round is fully seated. In this instance, the round might get stuck in the chamber if you try to extract an unfired round because the bullet is stuck in the riflings. You can test this by doing the 'plunk and rotate test' described at the link below. If your loaded rounds pass the plunk and rotate test, then that's not what's happening.

https://www.shootingtimes.com/editorial/reloading-tips-the-plunk-test/99389

Yes the plunk test is the 1st part of it, that sets the oal. When the oal is too short with the fn bullets it can create feeding/jambing issues. There's no way to correct these feeding/cycling issues other than change bullets due to the non throated bbl's making the oal too short.

I luv the 9mm round in general, reloaded them since the 90's for 1911 race guns.

The mfg's today aren't doing anyone any favors. You got:
1 in 10 and 1 in 16 twists
different riflings
throated & unthroted bbl's
.355" bbl's and .358" bbl's
And just for the heck of it, supported and non supported chambers

 

[Fishingted]

Yes the plunk test is the 1st part of it, that sets the oal. When the oal is too short with the fn bullets it can create feeding/jambing issues. There's no way to correct these feeding/cycling issues other than change bullets due to the non throated bbl's making the oal too short.

I luv the 9mm round in general, reloaded them since the 90's for 1911 race guns.

The mfg's today aren't doing anyone any favors. You got:
1 in 10 and 1 in 16 twists
different riflings
throated & unthroted bbl's
.355" bbl's and .358" bbl's
And just for the heck of it, supported and non supported chambers

Agree