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Clarification of differences between Hoppers, RSCBs, Choppers, and BRI

homemade rscb hopper chopper brisc

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#1 Silly

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Posted 17 May 2021 - 08:35 PM

I am currently starting work on a few semi-basic wiki pages about dart feed systems, and am having trouble understanding the differences and timelines of the Hopper, RSCB, Chopper, and BRISC.

  • When was each system invented?
  • Who invented each system?
  • When did each system actually see widespread use? When did it begin to drop off?
  • Differences between each system?
  • What other versions of feed systems were there other than the 4 listed?
  • What kinds of incremental improvements were made to each system over time? By who?
  • etc, etc, etc.

 

Any and all info about these systems would be greatly appreciated. I figured NH would be the best place to ask in order to get proper information instead of pure speculation on rNerf or on the various Discords. 


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#2 Daniel Beaver

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Posted 18 May 2021 - 12:59 PM

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RSCB

I forget what this stands for, I think it's an acronym of people's names. This is the oldest of these magazine systems, and it's core feature is the 90 degree elbow directing air into a T coupler. You then have the barrel on the front of the T, and the magazine behind. You have to tilt your blaster downward to load the next dart. These work well in airguns, but were always somewhat underwhelming on springers.
The oldest reference to it I'm aware of is ShortShit's writeup from 2004. I'm sure whether he is the sole inventor. The popularity of this system has waxed and waned, but it has never really been replaced. There are many, many permutations of this idea using all sorts of different components.
http://nerfhaven.com/mods/ss_rscb/

 

BRISC
This is an evolution of the RSCB. Uses 45 degree fittings instead of 90 degree fittings, the theory being that it improves airflow. Ice9 developed this in 2009.
http://nerfhaven.com...ng-the-r-s-c-b/

 

Hopper
This uses a 45 degree wye coupler, so that the magazine is sticking upwards and backwards 45 degrees, and the barrel is in-line with the barrel. Darts load automatically between shots. I developed this system in 2009, originally as an automatic blowgun (demonstrating it's auto-loading capabilities):

https://www.youtube....h?v=DB9b2nvAdJU

Ryan posted one of the original guides for how to mount them to +bows
http://nerfhaven.com...y-hopper-clips/

Chopper
An evolution of the hopper incorporating some of the concepts from the BRISC. A hopper, but with a bent magazine. Streamlines the profile of the blaster, while maintaining automatic loading. Later evolutions of this used a magzine tube that was heated up and bent into shape, rather than using a fitting. Muttonchops developed this in 2010
http://nerfhaven.com...per-with-brisc/

Inline Clips
One system you didn't mention are inline clips (I suppose "inline magazines" would be a better name for these). These have the magazine chamber for darts directly in-line with the barrel, and then the barrel front of that. If tuned correctly, there's just enough air to push one dart through the barrel with every shot. These are typically made by push fitting a barrel of CPVC into a section of PVC tubing about 3 or 4 darts long, and then putting the whole assembly into the front PVC coupler of the blaster. I have no idea where this originated, but I think the concept is a contemporary of RSCB clips.


Edited by Daniel Beaver, 18 May 2021 - 01:06 PM.

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#3 Silly

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Posted 19 May 2021 - 09:43 AM

Thank you very much for the clarifications! It has certainly been hard to find the 'earliest' examples of each system, glad I thought to ask here. 


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#4 snakerbot

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Posted 25 May 2021 - 08:43 AM

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RSCB

I forget what this stands for, I think it's an acronym of people's names.

 

I heard it standing for Rawray7, ShortShit, Cynical Synapses, and 3DBBQ.


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