Thank you for the replies guys👍 Crowman have you ever put your .177 HW85 over a chronograph? I'd be interested to know if it was any faster than the HW95?/
Quote from: Ike the GSD on July 08, 2024, 12:56:20 AMThank you for the replies guys👍 Crowman have you ever put your .177 HW85 over a chronograph? I'd be interested to know if it was any faster than the HW95?/The guns internals are the same.HW85/95/98 all have the same power plant.
My HW95L specs and maybe overkill.HW95L Specifications:HW95L 26 Bore Diameter Piston Seal Size (mm) 85 Piston Stroke (mm) 45.13 Piston Swept Volume (cc) 3x15 Transfer Port x Length (mm) 0.106 Transfer Port Volume (cc) 426:1 SCR 254 Piston Weight in Grams (g)SCR = Static Compression Ratio, has little to no meaning for a pellet rifle. Pellet Rifle Swept Volume formula: Rifle bore radius squared x Pi (3.14159) x piston stroke = cubed mm. Convert to cubed centimeter by moving decimal point 3 positions left. Example: HW95L .22 caliber 26 mm Bore radius = 13 squared (1/2 diameter) = 169 mm x Pi (3.14159) = 530.929 x HW95L Stroke 85 = 45,128.9 mm cubed. Convert to CC (cubic centimeter) = 45.128 or 45.13 CC for Swept Volume.FPS = Feet Per Second, MPS = Meters Per Second, FPE = Foot Pounds of Energy. To convert to Joules multiply FPE by 1.3558, Joules to FPE multiply by .7376 To convert MPS to FPS, MPS x 3.2808399 = FPS . To convert FPS to MPS, FPS x .3048 = MPS. FPE Formula is Pellet weight (gr) x FPS x FPS divided by 450240 or 450436.7. 450240 is 2 x velocity of gravity x 7000, (2 x 32.16 x 7000 = 450240)450436.7 is 2 x velocity of gravity x 7000, (2 x 32.17405 x 7000 = 450436.7)The constant 450240 or 450436.7 depends on which value you use for the velocity of gravity, (acceleration due to gravity). 32.16 ft/s/s or 32.17405 ft/s/s. There are 7000 grains in one pound. The difference does not matter which ever constant is used for the FPE calculation. HW95L factory spring. 34 coils & 11.375” long. HW95L rifle/scope = 139.3 oz which is 8 lbs. 11.2 oz.https://www.weihrauch-database.eu/dywp Date your rifle by Serial Number.Hawke 4-16 x 44 mm Compact, IR, SF scope.LOP = 14.25”, 362 mm, trigger to center butt. WIN M70 30-06 = 13.875", 349.25 mm, CVA Accura V2 50 BP = 14.5", 368.3 mm. Note - LOP = length of pull measured from trigger to center butt. CofG = 4.25” in front of trigger blade & 18.25” to center butt. Rifle was received on 8/11/2020 from AoA. HW95 introduced in 1995 by Weihrauch.Moderator weighs 4.32 oz, 122.6 g, 1892 gr. Barrel without moderator = 12.188”, (12-3/16”, 309.575 mm), from thread end to breech block end. Moderator is 6” long. Female threads start 2.1” in from beveled end of Moderator. Thread is 3/4" long & 1/2" diameter with 20 threads per inch. Barrel length = 15.75”, 400 mm, from end of moderator to breech block end. HW95 barrel is 16 mm diameter & rifle twist rate is 1:16. HW95L total rifle length = 41.875”, 1063.625 mm, from end of moderator to butt center. Rifle is 29”, 736.6 mm, from end of moderator to end of compression tube.17 FPE HW95L .22 with moderator shot cycle using iPhone recording at about 5’.The Hawke tactical medium rings put the center line of the 44 mm scope 1.5” above the HW95L .22 caliber rifle bore. https://www.youtube.com/watch?v=bywPFmB2_ZM
Factory moderator on my 2018 year HW95L .22.