jcwit
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Just what is considered a Magnum air rifle?
Magnum Air Rifle
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jcwit
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OOOOKAY, how do I convert that to FPS in .177 using 7, 8, 10 grain pellets??
jcwit
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Hey, thanks much, that does answer my question and I'm going to put that where I can refer to it when needed.
Personally I look at it a little different. IMHO springers that can be called "magnum" are some of the hardest guns....well in general. Hard on scopes, hard on mounts, and flat hard to shoot well. I really don't think you need the calculator to figure it out. I think a good rule of thumb is if the box the thing came in says something over 1000fps you can count that as a magnum gun. Yea we all know they use feather pellets to get there but I am betting all things that can be attributed to the term magnum springer can be applied to any spring gun shooting over 1000fps.
Thoughts?
Thoughts?
jcwit
member
Well I guess I've been shooting "Magnum" air rifles since the 1980's when I bought my first Beeman R1, cost back then was around $200.00.
Times change and products change. I recently acquired a Hatsan 95 Vortex, which they list having a FPS of 1,000, Hatsan uses normal lead pellets to determine this number not some feather weight zinc alloy pellet.
At present I'm using Crosman Primer 10.5 grain rd. nose pellets. I get very good accuracy using them, but have also tried Winchester Rd. nose with even better results in my rifle. This is why I was asking.
Times change and products change. I recently acquired a Hatsan 95 Vortex, which they list having a FPS of 1,000, Hatsan uses normal lead pellets to determine this number not some feather weight zinc alloy pellet.
At present I'm using Crosman Primer 10.5 grain rd. nose pellets. I get very good accuracy using them, but have also tried Winchester Rd. nose with even better results in my rifle. This is why I was asking.
I guess you have then....did you think this was something new?
jcwit
member
I wondered what is considered what is a "magnum" in todays world.
reddyeddy gave me the answer, I just needed how to convert FPS into FPE.
reddyeddy answered that also.
reddyeddy, many thanks!
20 is what most people consider the threshold today, but it is just a matter of opinion... There's a gap between 18 and 22 that few guns fit in so 20 a good line to draw.
I think the reason for that is magnums are typically just jumbo versions of standard 18ftlbs guns, like the Trail vs the Trail XL, or the Diana 34 vs the 350. Magnums are typically 8.5lbs or more w/o scope, and ~48" long, so basically 10lbs ready to go. Cocking effort somewhat matches power at ~1.3 to 2x the cocking effort (lbs) for the power (ftlbs). My easiest cocking mag is 32lbs but only makes 23ftlbs to match. It's still 48" x 8.5lbs so it doesn't get used much. The last two mags I sold were 45lbs to cock, which is common, and ok for hunting but not general entertainment.
And just like how the velocity claims are sometimes lies, so can the power. Like the Trail Hardwood at 23ftlbs, which it will never see and is usually closer to 18. The velocity claim on the gun is real if it has no defects. Then the Trail XL is rated at 24ftlbs which it can easily do and more, mine is at 28 after a tune. So I have no idea how they come up with those numbers, but the power, velocity, cocking effort and weight are often off so you should not use any of the advertised specs to compare two guns.
I think the reason for that is magnums are typically just jumbo versions of standard 18ftlbs guns, like the Trail vs the Trail XL, or the Diana 34 vs the 350. Magnums are typically 8.5lbs or more w/o scope, and ~48" long, so basically 10lbs ready to go. Cocking effort somewhat matches power at ~1.3 to 2x the cocking effort (lbs) for the power (ftlbs). My easiest cocking mag is 32lbs but only makes 23ftlbs to match. It's still 48" x 8.5lbs so it doesn't get used much. The last two mags I sold were 45lbs to cock, which is common, and ok for hunting but not general entertainment.
And just like how the velocity claims are sometimes lies, so can the power. Like the Trail Hardwood at 23ftlbs, which it will never see and is usually closer to 18. The velocity claim on the gun is real if it has no defects. Then the Trail XL is rated at 24ftlbs which it can easily do and more, mine is at 28 after a tune. So I have no idea how they come up with those numbers, but the power, velocity, cocking effort and weight are often off so you should not use any of the advertised specs to compare two guns.
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