@Nekketsu:
Testing the Heavy Bowgun, and, dear god, I'm such a noob with this weapon, even the Great Jagras would pummel me. Any advice?
It was my main weapon! Hardest thing with the heavy bowgun I'd say is mastering the reload times. Most of my deaths come from reloading at bad times.
Use the special firing mode (B on Xbox) whenever it's loaded up to save on ammo, though be careful when switching between modes.
Depends what version of the weapon, but for mods I mainly stuck with the reloading assists for faster reloading.
Other than that, use your heavy fire when you knock a monster down (wyvern ammo and cluster bombs) they deal great damage but they're slow.
Find which ammo types your gun can use and keep an eye on it's ingredients to farm when needed. I really grew to love the pierce ammo and the sticky bombs. Never go into a fight without a sufficient amount of ammo. I don't think I ever used the normal ammo.
Main thing is mastering the reload times for each ammo. It's really hard to go back to melee once you get used to the hbg
It's really not expensive to keep up with the ammo if you farm here and there.
Also make sure to reload every ammo type when the monster runs away. I forgot the name, but some guns have an alternate fire called "wyvern snipe" I think, which really packs a punch
It's really satisfying loading monsters up with delayed exploding ammos, to have the ammo go off as you hit it simultaneously with dps ammo, only to knock it down so you can get up close and fire the wyvern ammo.
That's about all my advice I can think of for now!