The Bolter is a large, .998 calibre assault rifle. It has a much greater mass than most standard-issue rifles such as the Lasgun, although it is slightly shorter in length. Unlike most rifles, it lacks a stock, resulting in a grip much like a pistol's or a submachine gun's. A Space Marine's bulky Power Armour would make shouldering a stock an awkward experience, but Power Armour is most likely also able to compensate for vibrations and oscillation, making a stock redundant. Stocks are sometimes used, however, with an extended barrel and an M40 Targeter System to transform the Bolter into a sniping weapon system. These sniper Bolters, known as Stalker Pattern Bolters, are most often used with Stalker Silenced Shells.
Bolter ammunition (a bolt) is primarily a solid slug. Conventional solid slugs utilise a propellant charge contained in a casing that, when ignited, forces the bullet out of the barrel. In contrast, a bolt is self-propelled; it features its own integrated solid propellant that propels the bolt at high speeds, essentially acting like a miniature rocket. The propellant itself is shaped to control the bolt's direction and speed; however, this method of rocket propulsion would normally warp the barrel due to gas pressure. The Bolter uses an ingenious method to prevent this.
As well as the rocket propellant, a tiny amount of conventional charge is also utilized. This charge is just strong enough to force the bolt out of the barrel and ignite the bolt's propellant. The rocket-propellant is carefully fused to ignite just after leaving the barrel, alleviating any possibility of pressure build-up. The bolt then accelerates away towards the target under its own power.
The standard Bolter ammunition is designed to penetrate the target and then detonate, causing immense damage to the target and leaving little opportunity for survival.
The grenade launcher is primed with one type of grenade, quite often krak, which is activated by flipping a switch which deactivates the primary and activates the secondary, grenade, firing mechanism. The grenade is then fired, hopefully hitting and destroying the target. The versatility afforded by this set-up makes troops much more versatile when dealing with a variety of threats.
Not really considering that bolt rounds are not designed that way, if they were designed to be more 'explosive' the round would have to be larger than .75 cal, meaning bigger bullet and more "charge" causing it to be more unstable. Also, the bolt rounds is only useful to single targets because only has enough charge to render a 'single' opponent limb apart, it does not have the blast capability not like the frag grenade. A grenade launcher or grenade discharger is a weapon that launches a grenade with more accuracy, higher velocity, and to greater distances than a soldier could throw it by hand.
Last time I checked grenade launchers are crowd control weaponry because they have an area of effect aka “splash damage” think about it. Consider this, I have my trusty bolt gun, which can't completely penetrate 'carapace armor' I'm screwed against tanks. That’s why they have the Krack and frag grenades, the way you put it makes hand grenades useless as well. And you’re comparing it a fictional setting which is set 40,000 years in the future to real-life modern-day weaponry.
Do you actually read this stuff or are you one of those guys who just plays Dawn of War?
That book was written after the game, but that book doesn't exist any more. Actually any C.S. Goto's works don't exist any more, because of his bad writing and concept of 40K. Which outrage the fans. I bet you can still get a digital form somewhere, but not in GW stores.
and the fact that bolt round already detonates milliseconds after impact
Sources
Warhammer 40,000: Codex Wargear.
but it still redundant
why not make the bolt rounds more explody?
its like having a M79 under an MGL
unless it has some special crowd control uses like smoke, airburst or somesuch
Last time I checked grenade launchers are crowd control weaponry because they have an area of effect aka “splash damage” think about it. Consider this, I have my trusty bolt gun, which can't completely penetrate 'carapace armor' I'm screwed against tanks. That’s why they have the Krack and frag grenades, the way you put it makes hand grenades useless as well.
And you’re comparing it a fictional setting which is set 40,000 years in the future to real-life modern-day weaponry.
Do you actually read this stuff or are you one of those guys who just plays Dawn of War?
but i do frequent 40k wikis and forums
but yeah they did adapt the orginal canon to fit DoW
But it was a novel by C.S. Goto Right? yet it still wasn't part of the canon?
or the novel came after the game? im not entirely sure
Actually any C.S. Goto's works don't exist any more, because of his bad writing and concept of 40K. Which outrage the fans.
I bet you can still get a digital form somewhere, but not in GW stores.