SpudFiles

jackssmirkingrevenge wrote:What mixes do you intend to go to?

farcticox1 wrote:You mean to cut the barrel in half?

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hectmarr wrote:I found it by chance, after getting tired of looking for information on this topic, that's why I asked here. It's Murphy's Law

Different sports, different terminology. HPA was coined by the Paintball Industry , with evolved from "Nitro" tank usage. Regulators used by the paintball industry up until about 1996-1997 were all 850PSI (aka "HPA" for compatibility with CO2 guns). But then Tom Kaye (of Airgun Designs, and Shoebox Compressor fame) came up with a paintball gun which ran at 1100-1200PSI (aka SHP): The AutoMag RT, which was a Compressed Air ONLY design. However, some folks took a different tack, and started building and setting up paintball guns operating at lower pressures (350-450PSI aka SLP). With Airsoft taking off in the USA, some people started converting Green gas guns to Compressed air using Low Pressure regulators (~100-150PSI aka LPR). PCP guns before about 2000 ran from 1000 to 2900 PSI; when the "Simple Simon"/USFT came out, many were surprised to learn it was only a 1400PSI gun (with a very large reservoir).

LPR= "Low Pressure Regulator" 100-150PSI (LRPs are actually secondary regulators...they can take no more than about 1000PI input pressure, there are a few ULP "Ultra Low Pressure Regulators which regulate to 100-250PSI from 3000
PSI input pressure), SLP = "Super Low Pressure" 250-350PSI, SP = "Standard Pressure" 750-950PSI, SHP = "Super High Pressure" 950-1150PSI, Some people are starting to call 1200+ PSI regulators "Ultra High Pressure" UHP = 1200PSI-2000PSI, nodding to the tanks used for PCP filling and PCP power.
The "Simple Simon" evolved into the MAC-1 USFT built by Tim McMurray. Gen1 guns were unregulated and used a large 1400PSI Aluminum Reservoir (400CC), Gen2 guns used a UHP Regulator 1400-1600PSI with a 13 or 22 CI 3000PSI Tank.