Re: Vihtavuori Powder
Those are indeed intended for the .38Super. Not to mention they're some old timers too looking at the box.
Sierra still makes a 130gr FMJ in .355". They have it listed on the same data page as their 125grs. See attached page from their 5th Ed manual. Lots of powder choices besides the VV stuff...which as others have said is a fine brand but hard to get in my area too.