UNDER NO CIRCUMSTANCES USE THE HILL EC-3000 ELECTRIC AIR COMPRESSOR TO FILL DIVING CYLINDERS, B/A OR SCBA TANKS THAT ARE TO BE USED FOR BREATHING AIR APPLICATIONS. The EVO also benefits from completely new electronic architecture along with completely new software, as with all Hill products the electronics have been designed and tested in house by their own software, and electronics engineers, and believe it or not the PCB’s are manufactured in Sheffield too.

Recently, our airgun expert Mat Manning received the following question from an airgunner which got us thinking about the best options when it comes to compressors for air guns. Airgun compressors are the most practical way of making sure an airgun stays full of air, particularly if you live somewhere fairly remote without a bottle filling service. Dont sell your pcp, buy the compressor, you'd regret it if you did sell up. You have a verminator don't you? Can you connect the compressor straight to it? If it will do figgys 7ltr in half hour, should fill a pcp in 5mins without it getting too hot If you fancy the car battery route, then follow as above, but this time, select ‘DC12V’ on the red switch, then connect the two ‘jump lead’ cables to the plus, and the minus terminals on the car’s battery. Keep the car engine running whilst the operation is carried out, too, as with jump starting, especially if you have an iffy car battery, so as not to run down the battery in any way. Airgun Charging Cylinders and Tanks over 4 Litres can be filled over a few sessions if allowing the cylinder and the compressor to fully cool to room temperature between filling sessions. Please note that the fill pressure will reduce as the air in the cylinder cools down after filling. This is quite normal, simply top-up the cylinder again once it has fully cooled down. We have a comprehensive network of RFD’s throughout England, Scotland and Wales that allow us to deliver your rifle almost to your door (usually within 3 miles) for you to collect at your convenience.

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As mentioned, BSA’s compressor gives the user the choice of running it from a car battery, but given that the majority of shooters will opt for the rather more civilised route of mains plug-in, I’ll cover that process first. The new unit also benefits from our continuous improvement in R & D, including the new super durable Shuttle Valve, which we made from some quite exotic material.

Of course, there is the issue of warm air expanding, so with everything warming during the charging process, you might see a small drop in pressure when everything cools and settles. Close inspection and monitoring will tell you if the gauge needs to be pre-set just a little higher to take this ‘settling’ into account, and if that’s the case, it’s easily done, given the small drop-down marker on the gauge. Of course, this small element of trial and error, in the interests of being ultra-precise, is at the outset. Thereafter, with the gauge finely set, precise fills should be guaranteed. It’s completely free, and you won’t need to break any of the social distancing rules to collect your gun – keeping you safe and saving you money.A sustained red light means the battery is charging anywhere from 0% to 80%, while a red and green light appearing together means the battery is between 80% and 100%, and a sustained green light means charging is complete. One really great feature the machine offers is the ability to pre-set the desired fill pressure, which can be anything up to 310 bar.

This new EVO is incredibly simple to service and maintain, with tutorial videos available on YouTube.There are two obvious questions prospective buyers will want to ask, to which there are no definite answers, these being how long does it take to fill a gun and how many fills can the L3 do before the battery, or batteries if you have two installed, need recharging?

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As I've said before, my own view is that this type of compressor is mechanically unsuitable for filling anything more than small dive bottles because I doubt its ability to survive the stresses of doing that for very long. The L3 has an auto shut-off filling function, so you just need to turn the pointer on the gauge to set your desired fill pressure Fill time will depend on the particular gun; stating the obvious, but guns with larger cylinders will take longer. I happened to have a BSA Scorpion Tactical lying about for my test period, and this pleasantly compact rifle does have quite a small cylinder.