Εχω την εντυπωση οτι εχουμε μεινει πολυ πισω, την ωρα που η αλλοτε συντηρητικη Αγγλια μιλαει και αποδεικνυει στη πραξη βολες στις 100 γιαρδες. Με λειοκαννο εννοειται. Ειλικρινα δεν ξερω για ποιο λογο γινεται αυτο ενω υπαρχουν τοσες πολλες αποδειξεις. Θα προτιμουσα να εβγαινε καποιος και να ελεγε στον κοσμο τι ακριβως χρειαζομαι για μια πραγματικη μακρινη βολη. Οπλο, τσοκ, φυσιγγι αλλα προπαντων τρελλη προσκοπευση, Στα 70 μετρα το παπι πχ θελει 12 με 18 μετρα προσκοπευση και εκει βρισκεται το μεγαλυτερο προβλημα. Οποιος διαβαζει αγγλοφωνη βιβλιογραφια βλεπει συνεχεια αρθρα για τετοιες βολες, υπαρχει συζητηση και διαλυονται οσεσ αμφιβολιες υπαρχουν. Εδω ενα αρθρο του του Frank Morgan απο το Shooting UK.
When is a high bird out of range?
It all depends on the type of gun and cartridges we use and the target we are aiming at.
1. How much striking energy of the pellets is required for a clean kill?
2. How many pellets are needed to strike the bird and bring it down?
Gough Thomas’s book Shotguns and Cartridges for Game and Clays suggests the following:
• Small birds such as snipe: two pellets, striking energy at least 0.5 ft.lb.
• Medium birds such as partridge and grouse: three pellets, striking energy at least 0.85 ft.lb.
• Pheasants and ducks: four pellets and striking energy from 1 to 1.5 ft.lb.
Ninety yards is within range
For example, I will use the Hull 32gram fibre No.4 containing 160 pellets, with a velocity of 1,450fps. At 80 yards, the residual velocity of the pellets is 500fps and the corresponding pellet striking energy is about 1.5ft.lb. Even at 90 yards the striking energy is still about 1.25ft.lb and therefore should be more than enough to kill a pheasant. For a 30gram No.5 the corresponding range is 60 to 75 yards, for the No.6 it is 50 to 65 yards, and for the No.7, 30 to 45 yards.
Minimum shot pattern
The bird needs to be hit with at least three to four pellets. To achieve this a minimum shot pattern of 120 pellets in a 30 inch diameter circle is needed. A few years ago this would have been a remarkable achievement but today shotgun cartridge manufacturers are using new types of fibre wads and hardened shot that lead to denser patterns at longer ranges.
Let’s look at the pattern at 60 and 80 yards using a pattern plate and see how the pattern varies for different combinations of gun and cartridges.
80 yards
Let’s assume that with the right choice of tightly choked, long-barrelled gun and a 32 gram No.4 cartridge containing 160 pellets we can achieve an acceptable pattern (i.e. 120 pellets in a 30 inch circle at 80 yards). If the bird is in the centre of the pattern it is almost certain to be hit by four or more pellets and so a clean kill will be the result. A near miss potentially resulting in a wounded bird will occur when the bird is at the edge or just outside the central pattern but, because there are very few pellets in this outer region, there won’t be that many wounded birds. It is either going to be a clean kill or a miss. If we can use a 36gram (180 pellets) or even a 42gram (210 pellets) cartridge and still get the required pattern, the extra pellets will increase our chances of a hit. Although there will be more recoil with a heavier load.