Recurve Sights - Aire Valley Archers
Transcription
Recurve Sights - Aire Valley Archers
Sights Andrew Smith The sight used in recurve archery is different to that used in compound archery with a peep sight, or for a rifle as well as lining the blurred vision of the string up on the bow sight window in the same place each time, commonly known as the string picture. In its basic form a sight is no more than an adjustable pin/ring or combination of the two attached to the bow, which allows the archer to aim on the gold. Moving the position of the sight pin up, down, left or right changes where the bow is pointing, so hopefully your arrows go where they are aimed. Good form is important together with not trying to hold the sight pin as still as you can on the gold. This often leads to a collapse in form and the arrow doesn’t go where it has been aimed. Good body posture, a solid reference point and a sight pin floating around the gold will give much better results. What do we want in a sight? GO SIGHT SEEING Andrew Smith gives the lowdown on what to look out for in a recurve sight, including design and fitting W hen selecting a recurve sight you won’t be short of choice but they do vary in price from a few pounds to hundreds. Manufacturers are always bringing out new or enhanced models, so when making your decision what should you look out for and which features might make your life easier? What does a sight do? I was surprised to hear a relatively new archer say the other day that they had never been taught how to use a sight. When I mentioned lining up the string and the importance of a consistent reference point I was met with a blank stare and a shrug of the shoulders. The sight used in recurve archery is different to those used for compound archery with a peep sight, or for a rifle. These both have a front and back sight to line up, whereas in recurve archery there is no fixed point back sight. The back sight is involved with shoulder positioning, standing up straight and getting all the basics correct, Ignoring the different designs and features, the four most important attributes of a good sight are: that it does not move once it is set in a position unless you adjust it, that it does not rattle or lose screws, the colour (most come in black or silver but some manufactures do offer blues, reds and golds) and finally how easy and accurately you can change the position of the sight pin when making small or large adjustments. In general how well it does all of this depends on your budget. Bear in mind that a simple metal club sight for around £15 will do the job just as well as one costing £150 providing you remember to tighten up the screws after every six to 12 arrows. Sight designs Designs these days fall into three basic camps and then there are hybrids of these designs. The first is the simple club sight where a screw holds the sight block/pin on the rail. The next uses a worm drive with a quick release system to move the block up and down and the third system is a one-touch system that requires no locking screws. The other consideration is the position of the sight bar. Some manufacturers 52 BOW INTERNATIONAL 052-053 Smithy_Rev2.indd 52 21/4/09 13:58:21 Sights Andrew Smith put it out away from the bow on the end of the extension. Others locate the bar close to the bow and have an extension arm holding the sight pin away from the bow. The idea here is that there is less weight away from the bow, acting like a stabiliser. However, sights in this price bracket are so light it really is down to personal preference. The price also follows the same trend. The more complex the mechanism – such as the one-touch systems – the more expensive it will be. Choosing a sight Choosing the right sight is not easy and the decision will be based on the features required and how much you are willing to spend. It is best to look around, talk to club members, visit your local pro shop and ask questions. The difficulty is that everyone will have an opinion, but you will get some idea of the good and bad points. For example, I use a £120 Shibuya Dual Click sight because it is light and solidly built and I like the assurance that I can lock down the sight block. For me the inconvenience of undoing a locking screw to move the block up or down is not an issue, but many archers these days prefer to spend £50 to £100 more on the one-touch designs. Neither choice is wrong. When buying your first sight it does not really follow that the most expensive sight is the best choice. I am not saying that there is anything wrong in spending £200 upwards on a sight and putting it on a £100 riser, but perhaps I would have spent the money the other way round or invested in slightly better arrows. The counter argument to this is that once you have bought a good sight there will be no need to change it when you upgrade your handle. Within each design you get what you pay for in terms of the materials’ quality, the accuracy and smoothness of the adjustments and the quality of the manufacture. Don’t be fooled into thinking that a £70 lookalike of a £200 sight will work the same or last as long, but it might be the better choice for you and your wallet, especially if you only shoot once a week. Fitting the sight to your bow Fortunately bow and sight manufacturers make sight blocks and the position of the screw holes the same. The big differences are the threads used. The most common are 3/16", 4mm and 5mm. Most pro shops carry all these sizes in varying lengths to get a good fit, which is just as well as the imperial screws are not common on the shelf of your local DIY store. 3/16" screws are generally supplied as standard with all new sights. Once you have fitted the sight to the bow you may find on the cheaper worm drive models that the sight scale and mechanism are upside down if you are left-handed. Again, this is one of the things to consider when making your choice. Sights are manufactured to fit and work with right or left-handed handles, although some of the entry level ones will fit both. Even the cheapest sights have an adjustment to tilt the sight rail left or right. This is quite important because it allows you to get the rail running vertically parallel with the bow string. Handles vary in quality and you may find that the sight rail is not vertical when first fitted. It will not be o u t by much but if you do not adjust this it will move your windage adjustments when you change distances. Square dot sight pin helps with keeping the bow vertical at full draw Extension bars and sight pins Get to know your sight All the popular sights now come with an extension bar of some sort and the first question I am usually asked is where this should be set. This is not an easy answer positions, a single This Shibuya has 14 forward extension adjustment for click and t tmen adjus quick button to press for vertical planes and l onta small movements – in both horiz as like many things in our sport it can be personal. However, here are some guidelines: The further away the sight pin is from the eye the more the pin will float around, but small adjustments will be less critical to where the arrow lands. Some archers like to have the pin in focus and the target blurred and vice versa depending on your eyesight. This will also have a bearing on how far the sight pin is located away from your eye. At longer distances with the extension fully out you may find that the sight pin is too low and your arrows start hitting it, or you run out of adjustment to hit the target. To remedy this you need to bring the sight extension in towards the handle which brings the sight pin closer to the eye and changes the angles. For very low poundage bows and for some juniors it is not uncommon to reverse the sight so that the sight bar is inside the bow. Sights all come with a sight pin as standard, usually a ring and pin. In issue 50 George Tekmitchov from Hoyt went into detail about different sight pins and the benefits of each one. But briefly there are many different sight pins available from just a dot to open rings, rings with or without dots in the middle, crosshairs, variants of all these with interchangeable centres, bright flo pins and even different size rings. The good news is that all of them come standard on a 8/32 thread and most new sight blocks use this bushing, so swapping sight pins can be fiddly but simple. Although only finger pressure is needed to fit the pin, should more force be needed it is likely that you have it cross threaded or a locking screw has not been undone. This standard means the option to experiment is vast and over time this is worth doing as there will be one that you eventually find which suits you best. The biggest issue is not to over-aim. Basic sight. No extension options or fine adjustment All too often I hear archers complaining that they have moved the sight the wrong way. It’s easily done but costly if you are chasing a podium place, so learn how it works. Also take time to make sure you understand the adjustments and the effect these have on where your arrows land at different distances. This will help you to reduce the number of wasted arrows through adjusting your standard sight marks to the conditions. For example, if you know that five windage clicks move your arrows one colour at 50yd you will be hitting the gold much more quickly than somebody who is just guessing and spending their time hitting left and right. The golden rule when adjusting your sight is to follow the arrow. If it goes low move the sight pin lower. If the arrow goes too far right then move the sight pin to the right and vice versa. When swapping or changing your sight all your sight marks will be different. One quick way to get an idea of the new sight marks is to measure the distance from your sight pin to your arrow with your old sight and then use these distances on your new sight. It will only be a starting point as the extension lengths may not line up but it’s quicker and better than guessing. And finally The best bit of advice I can give is to buy the best quality sight you can that offers all the features you require. If you are unsure which way to go there is nothing wrong in buying a simple metal club extension sight (not the plastic ones, which bend), so long as you remember to check all the screws are tight after use. Remember spare locking screws are hard to get, even for the pro shops. BOW INTERNATIONAL 53 052-053 Smithy_Rev2.indd 53 21/4/09 13:58:30