PETE EVANS DIY
“some springers shoot well from a bench, but are poor on an HFT circuit
up. It might be necessary to hold the trigger in place with your parallel punches, to keep things lined up, before reinserting the retaining pins, remembering the longer of the two sits toward the front of the action.
On the subject of lubrication, the trigger comes from the factory lubricated with grease, which is fine, but can hold dirt and grit over time. With this in mind, it’s my preference to lubricate trigger mechanisms with a little light non-silicone machine oil.
Anybody contemplating this type of work requires a chronograph, or at least free access to one; not doing so is a bit like having a major operation and not having post-operative observations – in a word, it’s dangerous.
In this case, things looked very promising with an average of 11.13 ft.lb.s with JSB Exacts, coupled with commendable consistency. As always, it’s wise to keep an eye on a springer’s performance over time because on occasions it’s necessary to curb their enthusiasm, yet another reason to own a chronograph.
Power is only one part of the equation, though; firing manners and accuracy make up my trinity of accomplishment. On firing the gun, there was zero twang, just the muted thump of a well-sorted springer – the cocking seemed lighter, as did the recoil. The Vortek spring does have a smaller gauge wire, and is longer than the original, so that may give some clue to the results obtained.
Accuracy under field conditions was excellent, and as we have come to learn from Jim Tyler, some springers shoot well from a bench, but are poor on an HFT circuit. This final consideration completed the deal for me. I find the Vortek kit ‘impressive’, and give it the Evans seal of approval.
There comes to a close another chapter, but don’t worry, my book has many pages. See you next month for more airgun tales. I
Tony Burton AGR tuning. www.agrtuning.com. email@example.com.
HW98 Vortek spring set as featured £80.50.
Steve Pope V-Mach. www.air-rifle-tuning.com. Email: firstname.lastname@example.org.
V-mach removable cocking link pin. £10.
One thrust washer was inserted ahead of the front guide.
Vortek piston head, an optional extra, infused with molybdenum.
The new liner sits just inside the piston, and provides a track for the cocking shoe.