Mitsubishi Evo Forum For Sale, Each cartridge is fired at the same target, typically 200 or 300 yards away, and the impact of each round recorded (serious long range competitors will conduct ladder tests at the ranges up to 1,000 yards). Squab For Sale Near Me, (40.5 to 42.0 gr.) The 175 TMK has an overall length of 1.380″, compared to 1.239″ of the SMK. Will Robie Book 6, Picture hosting, Exclusive club forum, Premium recognition, and more website access are only a click away! They are only safe in the rifle shown and may not be safe in yours. Pnb Repossessed Cars For Sale, The 175 TMK has an overall length of 1.380″, compared to 1.239″ of the SMK. Sea Of Galilee Drying Up, USMC M40A5 Build- Part 3: Receiver Truing, Building a Custom 6.5 Creedmoor Precision Rifle, Review: Lithgow Arms LA102 Crossover Centerfire rifle Running a blog requires a lot of planning and organization. TMKs groups expanded to 2.5 min and 4.0 max. Assuming a 2670 FPS muzzle velocity, the 175 TMK requires 10.4 mils of elevation and 2.6 mils for a full value 10 mile/hour crosswind. NOTE: I am not claiming that the Miller stability and Litz drift formulas are These loads also assume the use of Redding or RCBS full length match dies, Redding Competition Seating Die and a 2.80” overall cartridge length. Follow this link. All rounds were fired from the bench, with a bipod and rear bag. 175 gr. In my 308 Winchester rifle, chambered with a For testing and evaluation purposes I settled on 2 different overall lengths, one magazine length (above, left) and one single shot (above, right). This is nearly a 10% improvement over the 175 SMK with a G7 BC of .243. It then generated a large amount of interest by long range competitive shooters due to its high ballistic coefficient and ability to remain supersonic at 1000 yards out of a … The data was summarized in 308 Winchester / 7.62x51mm NATO: Barrel Length […], A look at how rifle barrels speed up: Measuring the increase of muzzle velocity in new barrels Seasoned shooters and barrel makers will often tell you new rifle barrels speed up. Doris Buffett Husband, I've been working on a 175gr load for a bit now. The optimum jump length for the 175SMK is.065” off the lands and the coal is 2.830”. She Hate Me Netflix, Datsun 510 Rhd For Sale, Never miss a post! Both cartridges use the 175 grain SMK projectile. I will use manufacturer's data over user submitted data unless the manufacturer's I am trying out the 175 SMK again after doing a load development last week, they shot well. Consult appropriate load manuals prior to developing your own handloads. I couldn't get a magazine length bullet anywhere near being jammed in my AR. The idea is to look for clusters of rounds impacting in the same area, this would indicate an accuracy window or optimal load range (and would likely be the most accurate loads for a given rifle and bullet combination). Why Was Phil Stuck In Groundhog Day, Tipped MatchKing (TMK) load development: 308 Winchester and VARGET In Sierra .308 195 gr. The work hardening process makes the brass harder and less ductile. The additional .141″ in length effects the OAL of the complete cartridge. This is .046″ longer than the bearing surface I measured on a 175 SMK (.357″). afford a box of every type of bullet to measure them, I am asking for your Thanks that is what I have been looking to find and I tell you what its hard to get it out of people. I’ll be working up some loads for further accuracy testing at this distance. Velocities were approximately 50 ft/sec faster than the same powder charge with the 175 SMK. Mitwa Lyrics With Sargam, The Team Room is now a premium member's area. The 30 Caliber 175 Grain MatchKing was developed along with military experts for use in the M21, M24 and M40A1 sniper systems. Steve Berry First Wife, In January 2015, Sierra introduced a .30 Caliber/7.62MM (.308) 175 Grain HPBT Tipped MatchKing (TMK) to expand its offerings to F-Class shooters and tactical match shooters. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this site are monetized. Jump Shot Captions For Instagram, I’ll be shooting my ladder tests at 200 yards, since this is the longest distance available at the range closest to my home. I’ve read reviews and heard other shooters sing their praise. Cavapoo Puppies Tallahassee Fl, Rei Dividend Not Showing Up, 1236 fps at 1000 should be just about perfect! Funny Cocktail Names For Birthday, Nancy Leigh Kelley Adoption, Both cartridges use the 175 grain SMK projectile. Best Soil For Swimming Pool, Using the traditional methods and firing 5 shot groups, I determined that 44.5 (#6 in picture below) and 44.8(#7 in picture below) grain loads deserved a second look. A forum community dedicated to Sharpshooters and Sniper enthusiasts. More great content! Range conditions were 77F, with the sun at 1 o’clock to the firing line. Carmax Bank Draft Problems, ... 308 Winchester Barrel Length and Velocity: Winchester 147 grain FMJ January 24, 2015 0. Black Screen Vr, Normally, I’ll load five rounds of a given charge in .3 grain increments for a given powder (some shooters load 3, or 6, for two three shot groups). Required fields are marked *, 5042 Wilshire Blvd Comparing external ballistic performance using a ballistic calculator for the 175 grain TMK and SMK at the same velocity shows the difference in performance at 1,000 yards. The test rifle is a 22″ 308 Winchester with a Shilen barrel and a Remington 700 Action. Click on a term to search for related topics. Jay Ryan And Kristin Kreuk Relationship, The Raven Four Series Book 2, They are only safe in the rifle shown and may not be safe in yours. Sorry, your blog cannot share posts by email. Sierra sent a box of .30 Caliber 175 TMKs (part number 7775) to evaluate. How To Get Rid Of Texas Spiny Lizard, Does Alicia Witt Have A Disability, The 175 TMK has an overall length of 1.380″, compared to 1.239″ of the SMK. SMK, 43.4 gr. Seven Deadly Sins Melascula Lemon, Unfortunately, I don’t plan or organize very well. Make sure you list the bullet diameter along with the length measurement. Never miss a post! Cases were neck sized, trimmed to length and cleaned in an ultrasonic cleaner. I ran my best accuracy load through a chronograph and was getting right at 2650 fps. You can see the difference in the start of the ogive between the two in this picture.It’s not possible to seat something to be close to the lands unless we turn our gas gun into a single load weapon. I expected better, however, I feel results would improve with a more intensive load development process. SMK, 43.4 gr. I’m not interested in having my 308 perform like a 30-30, so slow and accurate loads don’t appeal to me. This is an […]. When The Beat Was Born Lesson Plans, The 175 SMK at 2670, requires 11.4 mils of elevation and 3.0 mils for a full value 10 mile per hour crosswind. I use Fed brass, RL-15 (41.3), measured at 2.800". All content and logos © 2010-2013, JBM Ballistics, LLC Velocity?I should mention I did order a barrel today its a hart 22'' 1:11 I also ordered the the chamber reamer which is a 308 winchester match with .112 throat.I was looking into the same topic. SMK, 42.0 gr. How Much Shock For 15000 Gallon Pool, 6.5 Creedmoor- Effect of Barrel Length on Velocity: Cutting up a Creedmoor! Shiba Inu Adults For Sale, The Transit Lounge is a boutique coaching consultancy that specializes in supporting women to earn great money, doing work they love, without burning out. I often utilize traditional methods to develop hand loads for my rifles. 223 Ackley Improved (223AI) loads and review: A better 223? Craigslist Wire Haired Fox Terrier, Note the first cluster at 39.3, 39.6, 39.9 and 40.2 grains, and the second at 41.4, 41.7, and 42.0 grains. Subscribe to Rifleshooter.com (top right corner) and never miss a post! Special characters must be converted to English characters (examples: Ü, Æ, Ö, Ă). 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