"Caretaker" - Voyager launches tricobalt devices at a range of ~400 km.
"The Cloud" - Voyager has 38 photon torpedos, and cannot manufacture more.
"Ex Post Facto" - Voyager locks phasers shortly before the Numiri ships close to 4,000 km. The Numiri engage tractors at 2,000 km, and Voyager fires at 1,500 km. In "The Swarm," Janeway arms phasers at 100,000 km, and the swarm is reported to be at 7,000 km after being fired on.
40 tons of thalmerite explosives are expected to be able to blow up a Numiri ship.
"Cathexis" - phasers may be used on wide-beam kill setting.
"Non Sequitor" - while being chased by a Nebula class starship, Kim loses shields while still 5,000 km away.
"Maneuvers" - apparently anti-proton beams were available to the Maquis, although presumably not as potent as those on the (TOS) "Doomsday Machine."
Photonic charges are in common use. These appear to be relatively weak weapons.
"Resistance" - The navigational deflector may be modified to emit radion beams.
"Prototype" - Pralar ships use quantum resonance charges - a powerful weapon, apparently. Among the systems in use by the rival Cravic are disruptors.
"Dreadnaught" is "better armed than the entire Kazon-Nistrim sect." It has quantum torpedos.
Voyager is equipped with type VI photon torpedos, which post-date Dreadnaught's construction.
"Plasma weapons" were unknown in Sulu's time, although taken for granted in Voyager's era, according to "flashbacks."
Concussive charges, however, were apparently in use by the Klingons.
"The Swarm" uses interferometric pulses, which can cancel out shields and reflect phasers.
"Rise" shows an asteroid which was thought to be of "simple nickel iron composition," and expected to be "vaporized," or at least reduced to fragments no larger than a centimeter in diameter.
The asteroid is instead heated to violet white and partially vaporized, with several large fragments surviving, and had an artificial structure.
A later asteroid, described as "huge" (apparently larger, although not greatly so) is a half kilometer in diameter.
Borg scan with polaron beams, and use disruptor weapons. "Scorpion." The EMH of Voyager can do a better job adapting nanoprobes to Species 8472 than the Borg can. This is quite strange.
A multikinetic neutronic mine has a five million isoton yield, which would affect an entire star system.
Class VI photon torpedos have a 200 isoton yield. Class X high yield warheads are also available.
"Year of Hell" - The Krenim time weapon. An interesting weapon, it erases an object from space/time.
Although "massively outgunning" Voyager, the Hirogen ships fail to open fire, closing to 6,000 kilometers first.
"Prey" - phasers may be modified to fire nanoprobes.
"Retrospect" - weapons shopping. Isokinetic cannon - ten meters of monotanium inside a chromoelectric force field. Terawatt powered particle beam rifle, four microsecond recharge cycle, ten kilometre range. Most of Kovin's handheld disruptors are thoron based.
Kovin's ship fires photonic pulses.
"The Omega Directive" - a 54 isoton gravimetric warhead is installed on a torpedo. Kim asks if they intend to blow up a small planet with it; Janeway then requests an increase to 80 isotons.
Photon grenades are in use 700 years hence in "Living Witness" in a small Delta Quadrant civilization.
"Extreme Risk" - the Delta Flyer has Borg-inspired photonic missiles.
"Once Upon a Time" - Phaser drills are available.
"Infinite Regress" - phaser cannon in use by Species 6339. They also designed a virus to attack the Borg. An apparently related virus shows up in "Collective," designed by the Brunali ("Child's Play").
"Think Tank" - both Hazari and Voyager make use of spatial charges.
"Warhead" - a sentient meter-long warhead is found by Voyager. Its companion already blew up, leaving a 200 km radius impact crater; it had been ordered to divert course straight into a planet. 34 of these strategic long range warp missiles were launched; most were not. They have a range of 80 light years.
There are thousands of subspace mines in the region. Encountering them, Voyager must drop out of warp.
"Equinox" - Voyager targets Equinox's power sources at 30,000 km.
"Riddles" - Tuvok used to be able to disassemble a photonic warhead in thirty seconds.
"Collective" - Kim tries to use a plasma charge to blow up a Borg shield generator; this is prevented by a dampening field.
"Live Fast and Prosper" - Voyager's phasers are apparently "optronically targeted," according to con men who downloaded Voyager's specifications.
"Drive" - the Delta Flyer's warp core is expected to wipe out all the small ships within a million kilometers when it breaches.
"Nightingale" - a deflector pulse is used to explode the Annari ship's phaser banks.
"Flesh and Blood" - Voyager uses an anti-photon deflector pulse on a hijacked Hirogen ship. It takes two hours to reconfigure the deflector array.