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Posted: 6/6/2006 1:40:24 PM EDT
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I'm specifically interested in the muzzel velocity of the Polycoated 55 gr stuff from a 20" barrel. I read all 17 pages of the ammo review thread and the numbers seem to vary considerably. Wolf claims 3241 fps (exaggerated or maybe from a 24" barrel?). A couple posts had it from around 2750 fps to 3000 fps. Someone even said that the 55 gr was actually slower than the 62 gr. Odd. Do any of you guys have any reliable numbers on this. I know its underpowered compared to m193 but I'm just curious about actual results from the chronographers. Please forgive me if I missed it somewhere. Thanks Scott |
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Good luck on getting any information on Wolf ammo. I have been trying through many different methods to get someone to perform a real test on Wolf ammo. The only testing that I have seen done is the picture of the ballistic gel shot in the ammo oracle. This however was the fmj round only, and was taken some time ago. Wolf ammo has been changed since then, and there are rumors that they have taken steps to increase muzzle velocity. Everyone assumes that the hollowpoint performs the same as the fmj, but as far as I can tell, this is based on tests of Wolf 7.62x39mm in which the hollowpoint rounds failed to open up reliably. To the best of my knowledge, no one has ever seriously tested Wolf .223 HP ammo. I don't expect it to perform like M193, but I would at least like to see someone test the stuff out of curiosity and maybe post pictures of the gel shot results so people can make up their own mind. It appears that the folks who have access to the materials and facilities needed to perform realiable testing just aint interested, and everytime you ask, everyone just repeats the same old montra "Wolf doesn't fragment". |
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I ran Wolf Poly through a 20" A1 and got just over 2800 fps avg of 5. I ran it through an 11.5 Colt 1:7 and got 2510 fps avg of 5. I can't find the slip with ambient temp, etc. right now, am operating from memory. I distinctly remember that my M193 SA ran faster from the 11.5 than the Wolf in a 20". Sam |
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It has been my experience that velocities for Wolf can vary up to 100 fps between lots of the same bullet weight. Variations with elevation above sea level, atmospheric pressure, and barrel/ambient temperature can cause 50 to 100 fps change in velocity for the same lot easy. Changes in velocity and pressure with barrel temp and ambient temp depends a lot on what type of powder is used. Some powders are more sensitive to this than others. It should also be noted that different brands and types chronographs can vary in their accuracy for measuring acutal bullet velocity. Chrony's are notorious for this. Oehler's are supposed to be calibrated better, but you pay for it. So that all said, other people's chrono data should be within maybe 150 to 200 fps of each other for the same type of ammo and barrel length, with the only difference being with ammo lots, rifles, and shooting conditions. Final thing, the Wolf steel case ammo is underloaded compared to milspec, period. 200 to 400 fps below m193/m855 velocities for the same bullet weight is the norm. Some of my chrono data has been posted in the long thread on the ammo. The full data is below using a base model Chrony (the F1 I think): The lot stayed the same for each bullet weight, the only thing that changed was barrel length and ambient temp. Shooting was at a elevation of approx. 1000 ft above sea level. 16" barrel, Temp = 95F (10 shot avg. at 10 ft from muzzle) 55gr. FMJ - 2837 fps 62gr. FMJ - 2886 fps 62gr. HP - 2774 fps 16" barrel, Temp = 80F 55gr. FMJ = 2760 fps 20" barrel, Temp 80F 55gr. FMJ - 2843 20" barrel, Temp 40F (tried to keep ammo warm before shooting) 62gr. FMJ - 2873 fps So long story short, all Wolf probably shoots somewhere in the 2700 to 2900 fps range. |
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