Direct proof of use
The directly cited conflict record for the 9M28F in Ukraine is a captured-materiel report. On April 1, 2022, Ukraine Weapons Tracker reported that Ukrainian troops had captured a Russian BM-21 Grad multiple rocket launcher and more than 70 9M28F Grad rockets. MILMAG's live war log for the same day mirrored that post at 16:49 while covering the thirty-seventh day of Russia's full-scale invasion.
That evidence supports the rocket's appearance in the war as captured Russian rocket-artillery ammunition in Ukrainian hands. The cited report does not state that the captured 9M28F rockets were fired after capture, so the catalog treats the record as captured equipment rather than confirmed employment in a firing event.
Sources: Ukraine Weapons Tracker 9M28F Capture Post, MILMAG War in Ukraine Day 37
Narrative
The 9M28F is a Soviet/Russian 122 mm unguided high-explosive fragmentation rocket in the Grad family. Deagel identifies the 9M28F as a Splav-produced rocket projectile for the Grad multiple launch rocket system, while Fenix Insight's METIS entry describes the 9M28F-1 as a Soviet-era, Russian-manufactured HE-fragmentation rocket developed for the Grad-1 multiple launch rocket system.
In the 2014 Russia-Ukraine War catalog context, the rocket is therefore tied to the broader Grad rocket-artillery ecosystem but has a narrower documented record than the BM-21 launcher itself. The available direct source for this specific munition names captured 9M28F rockets alongside a captured Russian BM-21 Grad launcher, making the strongest supported conflict-use description captured rocket-artillery ammunition rather than an independently documented strike.
Sources: Deagel 9M28, METIS 9M28F-1, MILMAG War in Ukraine Day 37