1Ti 1:18 This charge I commit unto thee, son Timothy, according to the prophecies which went before on thee, that thou by them mightest war a good warfare;
1Ti 1:19 Holding faith, and a good conscience; which some having put away concerning faith have made shipwreck:
1Ti 1:20 Of whom is Hymenaeus and Alexander; whom I have delivered unto Satan, that they may learn not to blaspheme.
Not a word in there about someone losing their salvation or going to hell...Here's another example:
1Co_5:5 To deliver such an one unto Satan for the destruction of the flesh, that the spirit may be saved in the day of the Lord Jesus.
This person was delivered to Satan and died for his sin but he was still saved...
I can see that making a shipwreck of their faith is not the same as losing their salvation.
It’s just living in such a way that their faith is unproductive and their lives are a wreck.