Then again, from the German 5.5 fpe perspective, a 11 fpe British gun is a real magnum, with 100% more power.This is the crux of the issue. Limiting techniques that are enough for the 12 fpe limit may be insufficient for the 5.5 fpe limit, and the British data may not correspond with the German situation, or springer innards.Weihrauchs with .25 cal barrels are commonly available in Germany. My math tells me that, shooting the lightest .25 cal quality lead pellets available (FTT), MV must stay below 107 m/s / 350 fps to keep within the German limit. That's arrow velocity range, for the tiny, blunt speck of lead!
Jim, a JM spring wire for the HW50 is about the same dimensions, and they produce 12ftlbs or less in the HW50, use the same spring in the HW95 and you get about the same results! I have done it many times and have 1 rifle set up this way as we speak in a .177cal! I have also done this in my 97k's in .177cal YMMV
My math tells me that, shooting the lightest .25 cal quality lead pellets available (FTT), MV must stay below 107 m/s / 350 fps to keep within the German limit. That's arrow velocity range, for the tiny, blunt speck of lead!
Yes, British airgunners take the legal limit VERY seriously. The lawmakers and -enforcers consider an airgun with a muzzle energy of 12.1 fpe a firearm. Instantly, you'd be dealing with possession of an illegal firearm, which is a serious offence. The local airgunners quote several thousand pounds in fines and up to three years in the slammer as the potential result of making a springer a little hot. Crikey!re: techniques of power limiting. The bummer would indeed be to buy a German gun that has a weak mainspring...and a TP that's simply made so small that the power will remain at 1/3 to 1/4 level. Messing with the TP is serious business (I have some experience in the matter), with ample avenues for irreversible damage, in this case to a brand-new gun. Extra receivers are almost never available, and fetch a pretty penny. But let's say the Weihrauchs are only limited by weak mainsprings. That's a minimal level of modding, in time and cost, and nowhere near the same as paying a premium for a full-power gun. Also, I limit my interest to rare calibers / versions. I've never seen replacement barrels for the fixed-barrel guns, as opposed to plenty of breakbarrels. When you could get a, say, German HW77K in .20 cal for much less than what a ordinary-caliber HW77 costs elsewhere, that'd be plenty of reality-based motivation. Even the HW80 fetches well over 500 e today, outside Germany, and a replacement barrel with fittings is what, 200 e after all is said and done. That's hundreds of euros over what the German version in a funny caliber goes for, readily available in Germany. Not nearly "coming ahead by simply paying a premium". IMHO.
EDIT: That spring was for the HW95/98; with 85mm of stroke.
I can see this is going to be a lengthy thread to get to the bottom of all that is in the power and function of these power levels!
Mark, Ron,The UK HW95s, and the 98 I have are all 85mm piston stroke. The transfer ports are 3mm x 15mm.The HW77 I have has 81mm stroke, and 3mm x 6mm transfer port.