The Roadblocker is a large caliber weapon, and as such, incurs a +2 recoil penalty. The heavy barrel and innovative gas system of the Roadblocker effectively negate the +2 recoil penalty afforded by its heavy caliber. The custom ammunition for the Roadblocker costs 600¥ per box of 10 with a Street Index and Availability of 14/12 Days and 2 respectively. Treat the custom ammunition for this weapon as AV rounds, as per the rules on pg. 36 of the Cannon Companion.

<<<Developer’s Notes
This weapon is obviously based on the real life Ithaca MAG-10 “Roadblocker”. For purposes of game play for Shadowrun, I have modified the basic design I created from the Cannon Companion by borrowing from the Barret Model 121 sniper rifle. My guiding principals were; the weapon must be capable of *possibly* taking out a car in one solid shot, it must compete with Shadowrun shotguns with higher Power levels that also offer Burst Fire, it must be expensive and difficult to obtain, and it must be balanced.

As such:

• Low ammo capacity helps to balance this weapon.
• Although not all groups worry about weight, this weapon weighs approximately 17lbs unloaded.
• It is considered a military grade weapon.
• It is difficult to obtain, and is expensive.

In addition, with clues gained in an arcane process, I decided that for roughly the equivalent of two levels of Increased Power, you could exchange the +2 Power level for and increased Damage Level. However, doing so requires the weapon uses custom ammunition, and suffer +2 for recoil. I used the rules for custom ammunition as presented for the Barret Model 121, with the following results: Whereas the Barret’s ammunition is based on standard APDS, it’s cost is roughly 2.8 times the cost for APDS. Hence, the Roadblockers ammunition is based on standard AV ammunition, so by the same logic the Roadblocker’s custom ammunition is 571.43¥, which rounded for game’s sake I decided should be 600¥. The Street index and Availability was taken as is, but reflects the fact that regardless of the particular model the weapon uses the same ammunition.>>>

An Alternate Version Designed Strictly From CC

Ares ASG-3 “Roadblocker”
One of the most powerful commercially produced semiautomatic shotgun available today. The Roadblocker is a very large and heavy weapon, intended for use at roadblocks where it would not, presumably, be carried for extended periods. The Roadblocker uses typically uses anti-vehicular ammo, and its primary role is to quickly disable fleeing vehicles.
The gas system is located at the front of the magazine tube, limiting the Roadblocker’s ammo capacity to five rounds, and one in the firing chamber. Another aspect of the gas system is its counter-recoil design called “countercoil” by the manufacture.
The Roadblocker is available only to certified law enforcement and military purchasers.

Ares ASG-3

Having presented this with a light heart, is there anyone who would like to offer any constructive criticisms?

Sawing through an intregal gas-recoil system can cause "reliability issues".

That'd be true if the Gas Venting was in the stock, and not the barrel.

Ummmm. I'm not sure I follow you. Barrel shortening is common in sawed shotguns, and many shotguns do have gas-recoil systems right below their barrels, making shortening them a bad idea. Besides, barrel shortening of this weapon would ruin it because it is not intended to fire "shot" rounds.
The amount of concealabilty increase for shortening a MAG-10's stock would be maybe -1, but it would be very unwieldy and dangerous, although a troll could pull it off.

Unless you fit it with a Shock Pad.

You certainly did. And I have learned a lesson about reading and playing Madden at the same time. Sorry Kev.

Rigid stocks, according to page 83 of CC, grant the 1 point recoil reduction same as a folding stock, however rifles and shotguns are specifically exempted.
Does anyone know any canon rules for the effect of shortening the stock if an off-the-shelf rifle or shotgun? I'm digging through SSC and Fields of Fire, but not finding anything yet.

S'cool, omae. The only way to get better at multi-tasking is to practice.

If the car was moving toward you, like if you were at a road block, the relative speed wouldn't matter that much.

I don't know the rate of fall for shot but 12 gauge slugs drop an inch for every ten feet, I believe, and I think they travel at like 200 feet per second. That should do it, IMO. Can someone back me or correct me?

As a long-time SR2 player, in both FoF and CC, it's Strength, not Body.

S'OK, it happens. I sometimes forget and have to re-read the section when I play one version for a bit too much time.

You're right. I forgot about that. In that case, it makes a bit more sense to be able to lay down the smack with one round rather than three.

I don't see anything that says that you can't use gas vents on shotguns, but I don't have CC. You certainly can do it in reality, even when you are using shot.

It strikes me as kinda funny that 'The Gun Dude™' doesn't actually have 'The Gun Book'.

Well, uhm, not quite. After all, the Claymore launches the 700 steel pellets with 1.5lb or C4. The 40mm shot round may get to, I dunno, 1/100th of that power. It seems my Google-Fu has gotten weaker of late, I couldn't find the weight of 40mm grenade propelling charges. In any case, a 40mm HV shot round (or actually, if the purpose is to stop a car, a solid slug or saboted 40mm HV) might work rather well for this use, but the recoil might be, err, rather bad.

[Edit]I found this though. Ouch... That must be expensive fun, at ~$30+ per round and a rather decent cyclic RoF.[/Edit]

[Edit #2]I couldn't even find the projectile weights of M406 LVHE and M384 HVHE grenades. I think the grenades are about the same weight, so the 75m/s (246fps) vs 240m/s (787fps) velocity difference probably translates to about 10 times the energy. Would this be endurable for a troll from a ~10-15kg weapon with good muzzle brake, buffers, etc?[/Edit #2]

The M576 40mm Buckshot round held twenty-seven 00 buckshot pellets. Here.

Franchi SPAS-12, innit?