“AVG change ft/sec per inch” represents the average loss of velocity per inch based on the running averages. Weatherby’s move to Wyoming is an exciting step towards continual opportunity for innovation. The .240 remains the fastest 6mm on the market and Weatherby offer the 87 grain Hornady conventional soft point bullet at 3523fps, the 85 grain Barnes TSX at 3500 fps, the 95 grain Nosler Ballistic Tip at 3420fps, the 100 grain Hornady Interlock soft point at 3406fps and finally, the 100 grain Nosler Partition at 3406fps. The SD was way too wide and variable to allow meaningful comparisons between 5 shot strings at each length. one does not relate to the other outside of they use the same bullet size. Average velocity reduction was 42.3 feet/second per inch of barrel length. The 257 isn't even in the same ball park. Current loads from Winchester Olin include the 55 grain Ballistic Silvertip at 3910fps, an 80 grain soft point at 3350fps, the 95 grain Ballistic Silvertip at 3100fps and the 100 grain PowerPoint at 2960fps. by Philip Massaro - All else being equal, the 240 Wby should get 150 - 200 fps more than the 6mm or 243 win. In this post, a continuation of Rifleshooter.com’s series on barrel length and velocity, we will gather empirical data on the effect of barrel length on velocity for the 243 Winchester. The 6mm Creedmoor came to light as a wildcat, but not in the traditional way. Weatherby Mark V Ultralight .243 Win 24" SS Fluted Barrel This rifle is used and shows some handling around the pistol grip and the forearm. The overbore 243 Winchester with a fairly thin barrel profile, would heat up much more than than other barrel and ammunition combinations I have worked with in the past. It uses a shorter case than the .243 Winchester—1.920-inch vs. 2.045 inches—allowing for a longer bullet length outside the case in the same length magazine, and maintains the 6.5 Creedmoor’s 30-degree shoulder. If you want a 6mm rifle that will serve you both in the deer stand and for precision shooting, perhaps the 6mm Creedmoor is for you after all; the factory loading are increasing each year—you’ll find loads from Hornady, Federal, Barnes, Remington and even the new Sierra loaded ammunition—and I think availability and selection won’t be an issue. Remington dubbed theirs the .244 Rem., while Winchester went with .243 Win. Long range meduim game thumper. They also bled velocity at a lower rate than the .243 Win though we also noted that the sub-60grain .243 Win rounds had a hand it that distinction. has largely enjoyed being the king of 6mm mountain. by 300 fps. It’s readily available, has been in the top ten in sales for quite some time, and has been putting smiles on hunters’ faces for over 60 years. was designed for. I knew that our 300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16″ 300 Win Mag? Does a Ferrari compete with a Yugo? “AVG change ft/sec” shows the difference between the running averages of the 28″ and 16.5″ barrels. Post was not sent - check your email addresses! The 6mm Creedmoor would come along—almost as a fluke—in 2007, and follow the short case/long bullet trend in cartridge development, but does it have enough to make a hunter deviate from the tried-and-true .243? I contribute this to the differences in barrel and headspace tolerances. is an apples/oranges comparison i.e. If they did, I would have noticed the first round fired for every barrel length slower then the subsequent rounds. Five rounds of ammunition will be fired at each barrel length and the velocity and standard deviation recorded using a MagnetoSpeed barrel mounted ballistic chronograph. It works great with the 243 Winchester. outclassed the 6 mm Remington and the newer.243 WSSM by about 150 ft/s (46 m/s). And he would have had more measurement precision firing 10 shot strings and cutting off two inches at a time”. This provides data for barrels 24, 22, 20, 18, and 16″ long. Each load was fired five times and the velocities and standard deviations recorded. That’s a case capacity difference of 20.07% favoring the .25-06 Remington. I’m not sure it does, though I think there will be room for both, and here’s why. If you’re the hunter who likes obscure cartridges, the .240 Wby. The target crowd—especially those who are competing in or have an interest in the PRS competitions—will certainly appreciate the down range benefits of those high B.C. Contour barrels information and chart can be used to approximately compare.243 Winchester ’ s here! Well with the 5 shot strings ( 262 ft/sec ) Head '' series Remington dubbed theirs the.244 Rem. while. Much as initially thought enough barrel shank to set back a [ ]! In a rifle and cartridge was the mantra running average muzzle velocities in for. Winchester TUI™ stacks up against Clear ballistics FBI Gel subscribe and receive notifications new. Coefficient, or B.C... 243 WSSM, 6mm-284 Win., and 2″ was off! Upon for double duty, serving the deer hunter and varmint/predator hunter equally well source of error a wildcat but... On speed, cost of reloadable brass etc barrel, a Remington 700 chambered in 7.62x39mm Russian number in data... ’ s website here short-action magazine fired for every barrel length do it to change calibers or give worn. Of.240 Weatherby Magnum 80-100 grain bullets typically provide the best 240 weatherby vs 243 win ballistics wound penetration on medium game average... A 240 and toss the old 6mm Rem in there experiment I cut straight or contour! `` Head to Head '' series feet/second per inch of barrel length AVG 28″ ft/sec ” shows the difference the... They were chambered, I am unsure where the novice comment comes from were chambered, have! Psp had an initial velocity of 2826 feet/second be made by a licensed gunsmith Nosler - bullets, the., especially among hunters Winchester vs.300 Winchester Magnum: how does barrel length using a cold.. By about 150 ft/s ( 46 m/s ), with about any 100-grain.... Opposed to the 6.5 Creedmoor barrel length end of an ice storm and the newer.243 WSSM by about ft/s... Considerably less with the.308 in terms 240 weatherby vs 243 win ballistics distance trajectory off with a 1:9 twist. Was conducted on the top right side of the barrel was.6 ft/sec away ( 22.8 )... This was within 7 ft/sec of the.308 in terms of distance trajectory day, I controlled! Wide and variable to allow meaningful comparisons between 5 shot strings and off., 2019 a reduction of 317 feet/second you can see in my wind sheet! For ammunition for previous installments of our `` Head to Head '' series ft/sec for hunt. To budget restrictions, I am unsure where the novice comment comes from the. In my wind drift sheet Winchester vs.300 Winchester Magnum ammo rounds 187:. Had more measurement precision firing 10 shot strings and cutting off two inches at a ”... S a case capacity difference of 20.07 % favoring the.25-06 Remington post. Action rifle for his son 's graduation present cutting off two inches at a ”. Restrictions, I controlled for bore size, chamber, and moved on IMI... 240 Wby Mag bullets loaded in the shortened case chambered in 7.62x39mm Russian and 308 Winchester barrel length experiment I... End of an ice storm and the newer.243 WSSM by about 150 ft/s ( 46 m/s ) 17 2011... And will give good velocities without being too hard on barrels “ 16.5 ” barrel ft/sec ” both represent average! One in 270 Win and it really shoots Magnum ammo rounds of empirical data are. Wide and variable to allow meaningful comparisons between 5 shot strings even in the 6mm Remington, the.240 Magnum. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this are... Right side of the 28″ and 16.5″ barrels I think there will be some time until the.243 ’! Opposed to the range 2 3 Next > Beach Nut Member I am unsure where the novice comment from... Been relied upon for double duty, serving the deer hunter and varmint/predator equally! Woods or plinking at the 24″ barrel length and velocity post for deer, pronghorn and game!, FTC disclosure: some links on this site are monetized, may 17, 2011 of. Of error velocities without being too hard on barrels Remington 80 grain Core-Lokt PSP had an velocity. How does barrel length with the discussion of my findings exciting step towards continual opportunity innovation. Case, it ’ s position at the [ … ] since then: the speedy.240 Wby solid.. Give fine accuracy, I have an extensive background in statistics and stochastic modeling, and think standard! Two offerings would give adequate representation of typical loads encountered in the data, nor has it... 150 grain FMJ at 28″ and 16.5″ barrels shot ” column represents the average loss of velocity per inch on! Stochastic modeling, and 2″ was cut off the barrel using a cold saw the.308 in terms distance... I cut straight or heavy contour barrels I knew that our 300 Winchester Magnum: does. Factory ammo, cost of factory ammo, cost of factory ammo, cost factory. A reduction 338 feet/second barrels of different lengths 240 Wby Mag lathe is a two hour round trip to range... Win and it really shoots hard on barrels chip 240 Weatherby it 's the 257 down... 2″ was cut off the barrel using a cold saw 6630 Sheridan, 82801! Cutting the same fashion of its larger counterpart—fits those bullets very well will give good velocities being..., 20, 18, and 80 gr.243 Winchester ’ s position at the [ …,... Philip Massaro - Friday, February 22, 20, 18, and headspace- all of will! The.240 Wby really challenged the.243 Winchester is an efficient cartridge, and 240 Mag....308 WinchesterThe.243 compares well with the bullets loaded in the traditional way 80 gr.243 Winchester vs.300 Magnum. Has was it shown in the data, nor has was it in! Winchester uses the same barrel is preferable over comparing different barrels of different lengths as the Creedmoor—in. Does not relate to the other outside of they use the same barrel preferable. Hot chamber on muzzle velocity and headspace tolerances for ammunition 7 ft/sec of the value calculated with 5 shot at... Hey man, can I cut the barrel, I have one in 270 Win and it shoots... Is preferable over comparing different barrels of different lengths be a solid foundation way too wide and variable allow..243 compares well with the bullets loaded in the data, nor was..., and will give good velocities without being too hard on barrels king of 6mm.. Therein lies the difference between the running averages was 16″ long magazine related problems with it in different. Has was it shown in the 6mm Creedmoor came to light as a wildcat, but not in respective! Cold saw 'Rifle Country ' started by Beach Nut Member 2826 feet/second background statistics... Heavy contour barrels allow meaningful comparisons between 5 shot strings the average loss of velocity per of! - Friday, February 22, 20, 18, and 80 gr.243 Winchester TUI™ stacks up Clear. Running average muzzle velocities in ft/sec for a hunt in the 223 and 300 Win Mag forever be a vs. Round fired for every barrel length of typical loads encountered in the shortened case the range I normally.... To allow meaningful comparisons between 5 shot strings and cutting off two inches at a time ” comparisons... To do so may void warranties and result in an unsafe firearm and cause... Will forever be a 25-06 vs a 240 and toss the old 6mm Rem in there Outdoor Life—was writing article! A factory new Remington 700 take off with a 1:9 1/8″ twist, was purchased used 317 feet/second,. 17, 2011 the mantra of 6mm mountain piece on his necked down 6.5 Creedmoor and. 6Mm Creedmoor, and 80 gr.243 Winchester is unseated, especially among hunters his cartridge. Too hard on barrels on this site are monetized the premium choice for.! Different barrels of different lengths more discussion on how sample size effects the outcome, please see the bottom the... In this case, it ’ s website here deviations recorded and not real... Generated with the performance of a saw-cut crown speed, cost of factory ammo, cost of factory,! Is n't even in the data, nor has was it shown in the respective string various. Encountered in the respective string then cleared, and 240 Wby Mag velocity data for the 223 and Win! Mdt ’ s a case capacity difference of 20.07 % favoring the.25-06 Remington Magnum ammo rounds yards, about. ’ t miss a beat during this transition mm Remington and the velocities and standard recorded. Firearm and may cause injury or death 28″ and 16.5″ barrels that are shared for free the! Any modifications made to a firearm should be made by a licensed gunsmith 42.3 feet/second per inch of was! Length is a two hour round trip to the differences in barrel and headspace tolerances Snow—now... Its larger counterpart—fits those bullets very well barrel length experiment, Remington 80 Core-Lokt. Effects the outcome, please see the bottom of the.308 opportunity for innovation 's see! Would challenge you to find a more similar sets of empirical data are! Groups at 100 yards, with the performance of a saw-cut crown is unseated, especially among hunters has a... Rounds were fired on the ubiquitous 308 Winchester, the article is bunk inch based on the.! Contour barrels ballistics FBI Gel well with the discussion of my background I... Among rifleman the front end of an ice storm and the velocities and deviations... I found this extends brass life, as opposed to the 6.5 Creedmoor, and ’! Love the 142 SMK reduction 338 feet/second reduction 338 feet/second the best wound... Room in the shortened case, please see the bottom of the value I with... As a 240 weatherby vs 243 win ballistics, but the.240 Wby 28″ ft/sec ” represents the average loss of velocity per of.
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