What phono cartridge is suited for metal and heavy rock?

The Audio-Technica VM540ML would be very price-friendly in comparison to the other cartridges. I can't say that's a bad thing 🙂

Heavy Rock can present the frequency extremes with abundance.

Screaming Vocals, Guitar Shredding and then all the way down to visceral solar plexus thumping Bass Lines.

Most who enjoy Rock will have been in a venue experiencing it performed live at some point in their lives.

I don't know any HiFi System that will render a live performance experience of gut thumping Lowest Note Bass Lines, but the Upper Bass Notes, Mid's, Upper Mids and High's are certainly able to be produced to a presentation that can be perceived to have an honesty.

I don't know many Cart's that can deliver noticeable Bottom End Bass and then project the Mid's and High's with a Coherence that is seemingly a balance across all of the bandwidth.

One extreme of frequency is usually traded of to achieve the noticeable presence and the opposite end of the frequency range can sound as though it is lacking/subdued in projection.

A Cart' might need to be considered that will emphasise the frequencies that are most important to the listener, whilst replaying Rock LP's.      

Its impossible to make a cartridge favor a certain genre. What makes it good for metal will make it good for jazz too. With high output cartridges, if not loaded properly they can be bright due to high frequency resonances caused by the inductance of the cartridge in parallel with the capacitance of the tonearm cable. That is why low capacitance cables are used for phono signals!

You'll also find that the ability of the arm to track the cartridge properly far outweighs the cartridge character! Put another way, if the arm isn't doing its job properly neither will the cartridge. Paying attention to proper setup is really important too!

I've yet to hear a cartridge that could not do Fields of Nephilim, Black Sabbath and Verdi's Requiem all equally well. 

I think you'll find that controlling vibration around the turntable is a big deal if the turntable is in the room with the speakers. Anti-vibration platforms can really help the deep bass, smoothness in the highs at high volumes!

iv always found most metal music badly recorded.

I think you are much better off sticking with moving magnet cartridges. While I generally have the same opinion as atmasphere the one factor he did not address was value. You get at least twice as much for your money with Moving Magnet cartridges. Both the Goldring 1042 and Clearaudio Charisma V2 have the stylus/cantilever assemblies of very expensive Moving Coil cartridges at a fraction of the price. With most phono stages Moving Magnet cartridges tend to be more dynamic which is a characteristic I think you would appreciate. The Charisma V2 is the most dynamic cartridge I have ever had in my system. It also tracks better than the majority of moving coil cartridges. The AT VM760SLC is another great Moving Magnet cartridge along with the 2M Black LVB 250