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Pathfinder - Practical Guide to Firearms

Disclaimer

I will use content from the core rules, but will intentionally omit any content not published on the official Pathfinder SRD due to the unmanageable volume of non-SRD content, and the wildly varying quality of non-SRD content. If you would like me to write handbooks for specific content not published on the official SRD, please email me and I will consider it on a case-by-case basis. I will use the color coding scheme which has become common among Pathfinder build handbooks. Also note that many colored items are also links to the Paizo SRD.

Introduction

Ultimate Combat introduced firearms alongside the Gunslinger class. The Ultimate Equipment Guide includes rules for new firearms. With the sizable list of weapons, feats, and class archetypes which support firearms, many classes and characters can make use of these potent weapons.

To make the best use of firearms, we must first understand how they work, and examine what options are available to us. Start by reading the Firearms section in the Ultimate Equipment guide. It is the most recently written and most complete.

Proficiency

Unlike most exotic weapons, firearms all use one feat for proficiency. This means that anyone can come along and learn to use every firearm with a single feat. Any class or archetype which depends on firearms will provide this feat for free. Rogues who want to dabble in firearms can take the Firearm Training talent.

Capacity

Capacity is one of the early limitations on damage output for gun users. Additional barrels allows you make additional attacks before needing to reload, which can help give you an advantage early in a fight.

Range and Penetration

Penetration is what sets firearms apart from other ranged weapons. Though their damage isn't that much better than normal weapons, firearms can be used against touch AC, but without technically being touch attacks. This allows the application of Deadly Aim, thereby dramatically increasing your damage output while making attacks which are nearly guranteed to hit.

Early firearms can only penetrate within their first range increment, so pistol users will be within 20 feet and musket users within 40. This limitation has major tactical implications for gun users, and places a great deal of importance on good positioning and careful tactical movement.

Loading a Firearm

Loading your weapon is the hardest part of using a gun. One-handed weapons (pistols, etc.) take a Standard Action, and two-handed weapons (muskets, etc.) take a Full Round Action, and that's just for a single barrel. Either way, you're only going to be able to attack once ever other round unless your weapon has a capacity above 1 or you are carrying multiple guns.

Rapid Reload is basically required for gun users. Pistol users can load and make a single attack in a turn, and Musket users can reload and move in the same turn. In addition, you can use Alchemical Cartridges to reduce the reload time further. Combined with rapid reload, you can reload one-handed firearms as a free action, and you can reload two-handed firearms as a move action.

It is unclear if Metal Cartridges, which are used for Advaned Firearms, reduce the reload time. Advaned Firearms onle use metal cartridges, and the entry on advanced firearms states that they take a move action to fully load. The description for Metal Cartridges describes them as more advanced alchemical cartdidges, which could be interpreted to mean that they reduce the move action reload time to a free action. I would rule that Advanced Firearms take a move action to full load, but then expand Rapid Reload (which doesn't mention advanced firearms) to allow characters to reload their advanced firearms as a free action.

Misfires

Misfires are a pain. The first will break your weapon, and the second will destroy it unless it is magical or advanced. This limitation can't really be overcome, but the Gunslinger gets some options to recover from misfires.

Ammunition

Major sticker shock here. The first thing you may notice is that ammunition is incredibly expensive. If you're firing alchemical cartridges (and you should be), each shot costs 12 gp. Using black powder and a seperate bullet is only slightly cheaper at 11 gp per shot, and takes longer to reload. Every time you fire, you're shooting a pile of money at people. At some point you might consider just paying enemies to go away to save money on ammunition.

Alchemical cartridges also include special ammunition. The Tangling Shot and Flare Shot provide interesting tactical options, but keep in mind that the DCs aren't spectacular, and they don't scale at all. Flare Shot is cheap enough that you can afford to retry it until it works, but you will have better results using Tanglefoot bags instead of Tangling Shot.

Scatter Weapons

Scatter weapons offer an interesting tactical option. Instead of firing a single bullet, Scatter weapons can fire a cone, making an attak against each target in the cone. Assuming you have several targets grouped in such a way that you can hit several with a cone, this could allow you hit several additional targets with a single attack. Combined with multiple attacks from a full attack, you can do a lot of damage.

Firing cones from scatter weapons prevents you from using damage-increasing feats to increase the damage, which includes Point-Blank Shot and Deadly Aim. You will be dependant on Weapon Training, weapon enhancements, and normal damage dice. Because damage dice don't generally keep pace with damage from feats, and because the cone size for early firearms is very small, it can be difficult to use Scatter weapons effectively. However, the Shotgun's 30 foot cone is enormous, and can be used to great effect.

In general, scatter weapons deal less damage than their non-scatter equivalent, and have higher misfire chance (compare Pistol to Dragon Pistol, and Blunderbuss to Musket). If you do not plan to actively use the Scatter shot, use non-scatter weapons and forge that the option exists.

Double-Barreled Weapons

Double-barreled weapons are generally overlooked, but startlingly powerful. The second barrel allows you to make an additional attack (though both attacks are made at a steep -4 penalty) as part of the same action. Assuming I haven't horribly misread the rules, this means that each of your attacks can fire both barrels. As you gain levels, your attack bonuses will greatly outstrip touch AC. The -4 penalty will stop mattering, and doubling your damage is likely worth the penalty. Double-barreled weapons generally also have a higher misfire chance.

Picking a Firearm

Like any character dependant on weapons, your choice of weapon is a life-long decision which will define how you behave in combat. Rapid Reload only applies to one weapon, and the Gunslinger's Weapon Training ability only applies to one weapon. This limitation will generally restrict you to a single weapon unless you decide to invest enough feats to train in a second weapon type.

Early Firearms

Advanced Firearms

Should I allow firearms in my games?

How many firearms you allow, and what technology level is up to you. Ultimate Combat includes a section on Firearms in Your Campaign. Firearms have wide-reaching implications for the power level of your game, and for the technology level of your setting.

Early vs. Advanced

The difference in technology level between early and advanced firearms is significant. The revolver have a 6 round capacity, allowing the user to make several attacks before needing to reload. The rifle, despite doing very slightly less damage than the musket, has double the range, allowing the user to make touch attacks at a stunning 80 foot range. The pepperbox rifle combines the improvements of the two, adding a 4 round capacity to the rifle. The double-barrelled shotgun adds a second barel to the shotgun, which is the functional replacement for the blunderbuss.

In addition to better capacity and range, advanced firearms penetrate within their first five range increments, dramatically expanding their effective range. You can reload advanced firearms as a move action, which lets you make full attacks much more frequently. Rapid Reload doesn't appear to affect avanced firearms as written, but that hardly makes them any less amazing.