Your very welcome to come visit us at www.madarc.co.uk
Not that far from you, just off the A12 towards Maldon.
Clubs open 24/7 with a great setup / plinking range and an HFT course always set up around the meadow.
Friendly evening competition every Wednesday through the summer, and club shoots in a great woods next to the club on the 1st Sunday of every month.
The club holds national and regional competitions to UKAHFT 2012 rules throughout the year and it's club team has won the UKAHFT Team competition for the last 4 years, with individual members coming within the top 10, and earning England Team places.
Contact "popsheep" on here for more info or use the contacts through the web site.
Hope this is helpful.