I tried it with drakes AK.... I have no clue why it wont absorb those. But it will absorb his barrel... Just not his bullets. So confusing.
It absorbs both
problem is, the sheild doesn't last long enough to absorb all the bullets leaving him open.
I believe it absorbs projectiles and converts it into 10 ap.
Edit: nope, I'm wrong, depends on what you absorb, Radec's sniper converts into 30 ap, a bullet from his assault rifle converts into 5.
Making a list, but I'm leaving out the really obvious ones like Radec's sniper rifle or Drake's Assault rifle for the time being, and making note of ones you can't absorb that you thought one could in separate lists, updating over time;
RPG-7 Rocket Launcher: 30 AP per rocket
Hedgehog Mine*: Not the actual item; 10 to 70 AP depending on how many spikes it absorbs upon detonation (highest amount achieved being right on top of it as it goes off, can still disable supers if you're too close, otherwise you're unharmed.
LR-3 Railgun (Disabling ray gun): 20 AP, Does not disable you if absorbed.
Killer Bees (Two little ships that follow and attack): 5 AP per shot
Freeze Rocket: 5 AP
Dohvat Laser Designator (Air strike gun): 20 AP per rocket absorbed
All grenades: 0-5 AP depending on the move used
Barrel: 10 AP
Grenades: 20 AP
Boomerang Axe: 20 AP
Mutton: 10 AP
Electric arrow: 5 AP
Moltov Cocktail: 5 AP
Mine (while still a projectile): 5 AP
Mage Fireball: 20 AP
Bomb Explosion: 20 AP
Shock Grenades*: Undetonated 0 AP, Explosions can be absorbed if in detonated on the ground in front of you for 10 (Evil) or 20 (Good) AP
Lightning Tether: 0 AP
Lightning bolts: 5 AP
Alpha Blast: 30 AP (Evil) 10 AP (Good)
Redirect Rocket: 0 AP
Frost Orb: 10 AP
Electric Slide*: 10 AP, still stuns and damages
Shield Toss: 20 AP
Rockets: 20 AP
Murder of Crows
Sonic Rift (stunning grenade that slides across the ground)
Fusion Bomb (Rare bomb that splits into several more bombs)
Great Scythe Tornado