Reloading Question - advice needed

[Eod1]

Also glock barrels only support 85% of the case. Polish chamber and feed ramps ,take off any burs. If the barrel is the problem wolf barrels support the entire case. I use them in all of my glocks it takes away what they call the glock balge and I can reload them easier. Even on the wolf barrels u should still polish and clean the chamber

[BobGun]

Looking at the picture you posted, it looks like the rounds might be just a little to long. When loading flat nosed bullets you cannot load to the same max COL as a round nose bullet. In your post you stated that your first try did not fit in the magazine. Try finding a listing for the COL of another FN bullet and use that as a starting point.

[Remington788]

This is a Zombie thread from February 2016.
I imagine that the OP has solved the problem or given up by now.