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www.impactairgun.com เห็นราคาไม่แพงมาก เลยติดต่อถามว่าสามารถส่งมาเมืองไทยได้หรือไม่ เขาว่าได้แต่ต้องส่งใบอนุญาติไปให้ดู
ก็เลยถามว่าเป็นภาษาไทยได้ไหม เขาว่าให้ Scan แล้วเขาจะหาคนแปลเอง แต่ที่แปลกก็คือ พวก accessories ก็ต้องมีใบอนุญาติด้วย?
ถ้าสนใจลองเข้าไปดูครับ ที่น่าสนใจเห็นจะเป็น "Weihrauch HW100T PCP Air Rifle .22" เพราะบางเวปยังไม่มีขาย
ข้อความที่เขาตอบมาครับ ผมถามไปเรื่องขอซื้อ Scope แต่การตอบ mail รวดเร็วดีครับ
The restriction is very clear: "and there accessories" a scope and mounts are accessories. Firearms, air guns, and their accessories,
require special authorization from the Government" You can send the Thai documentation in a electronic form, we can translate. Most will scan & e-mail to us. We use global express mail for international shipping only.
"Velocity vs. Power
OK, enough of manufactures hype on Velocity! Here in the US, we are so obsessed by “how fast is it rated” that many have lost sight of the big picture, or the less experienced marksman is being misled. Velocity by itself means little, even more so if at 1200+ FPS you can’t hit your target with any consistent accuracy. If you are a true marksman, what is more important, accuracy or speed? Now with that said, if you are shooting the fastest airgun out there and you can’t hit the broad side of the barn, what have you achieved?
The fact of the matter is we should focus our efforts on a balance of first accuracy and then maximum velocity. To determine velocity, the preferred method is the use of a chronograph. A chronograph uses two photo eyes set at a specific distance that never changes. When the discharged round p. this optical field, it calculates the time from point “A” to point “B” and thus velocity is determined
Supersonic or Subsonic
Before we move on, let’s talk a bit about supersonic and subsonic issues. At sea level, the sound barrier is at approximately 1116 FPS on a given day.
Remember that when a pellet travels faster than the speed of sound, you get a pronounced crack as the barrier is broken. Now when a pellet nears or breaks the sound barrier, it losses stability and thus accuracy is lost.Most veteran shooters learn that
the optimum FPS falls between 700 - 900 which deliver the balance of speed and consistency. Those that shoot PCP or a Magnum Springer will utilize heavier lead pellets to maintain an acceptable velocity and achieve the desired consistent accuracy.
Most, if note all manufactures, use the lightest lead available to perform these velocity tests and thus allow for unrealistic velocity numbers.
You will never obtain accuracy of any rifle that touts 1200 FPS using the test ammo. This is why it is important to experiment with various styles & weights of pellets when you acquire a new rifle
Pellet Killing Power (knockdown)
The technical verbiage for this would be Kinetic Energy. A customer once asked “How can the starlings I shoot just fly away and then suddenly drop from the sky”. The problem was that he was shooting right through the target and had very little Kinetic Energy to knock down the target on impact. Knockdown power is crucial when hunting to prevent a varmint from running over to your neighbor’s yard.
The solution, use a heavier lead to offer more impact area and that translates into immediate desired results.
A rifle shooting heavier lead at 850 – 950 FPS is most favorable. If you acquire a Magnum (or supermag) you will find that the heaviest pellets consistently perform best as it bring the velocity down to that range of 900 FPS. Same is true for any caliber and any rifle, if your grouping is not what you expect, experiment a bit with a variety of heavier lead. "
