2 football fields are end to end. Enter your email address to subscribe to this blog and receive notifications of new posts by email. With bullets of 130 to 140 grains, the .270 WSM will buy you between 150 and 200 additional feet per second of velocity. Learning Your Dead-Hold BDC Reticle Video. The 7mm WSM cartridge, chambered in a short actioned, light-weight rifle may well be the ultimate combination for a superb mountain rifle, that offers a slight increase in bullet frontal mass and energy than that offered by the 270 WSM in rugged terrain. Bottom line is 50/200 yard zeros are very usable for many applications. Right out of the muzzle, the .270 moves 350 ft/s faster than the 6.5 Creedmoor. . OConnorwho would become a staple in Outdoor Life, and the gun industry as a wholetook the new cartridge and had all sorts of good adventures. 150 yard zero on mine. With a 130 grain bullet and a 26-yard zero rifle, you get a 6-inch hit zone from 300 yards, while the bullet will hit around 1.5 inches high at 100 yards. I have a .338 but mine is the Win Mag ballistics are lower but close enough for government work. Lets explore that using the external ballistics data of a bolt action rifle chambered for .30-06 Springfield with a sight height of 1.5 shooting a 178 grain ELD-X Precision Hunter cartridge from Hornady. If you choose to employ this 26-yard technique, beware that when zeroing at close range, you must strive for perfection. Contributing Editor for RifleShooter Magazine, Brad Fitzpatrick gives us a review of this modernized version of an iconic favorite. J. Scott Rupp takes a first look at the Springfield M1A Loaded rifle chambered in the popular 6.5 Creedmoor. Introduced in 1965 with the .444 Marlin cartridge, the Model 444 was the most powerful lever action of its day. Ever heard a broken clock is right twice a day? The Federal Ballistics Calculator lets you quickly determine the trajectory for any rifle or handgun load, and save data for an unlimited number of loads. Using a .277 bullet diameter, and a case 0.050 longer than the Springfield design, the .270 Win. Or is Primary zero the the bullet touching the line of sight as confirmed on a target, regardless of first or second time crossing the line of sight? Sighting-in a hunting rifle to hit a certain number of inches high at 100 yards (or 100 meters) maximizes the point blank range of the rifle and cartridge and is superior to zeroing at a fixed distance like 200 yards. However, this requires using a chronograph to get an accurate velocity reading and a ballistic calculator to determine the expected trajectory deviation at 50 yards. My elevation is between 7,800-12,500 feet the trajectory is a tad different than sea level so I don't go buy what the manuals say I find the drops on paper at the range. This, then, extends the 270's MPBR and increases its long range drop advantage even more, as this next ballistics table shows. First is the trajectory deviation between 50 and 200 yards is much narrower when using a 200 yard zero. Grain Weight: 150. seemed rather revolutionary. I did take the .270 WSM out yesterday in some pretty bitter temperatures and snow. Sounds like you don't have turrets on your scope. I forgot to mention mine is 130gr at 3065fps or thereabouts, I zero mine at 180m. All my rifles are zeroed at 50 yards, not because I wanted to, but Hurricane Florence destroyed my 100 yard range by dropping a 24 diameter tree across the path to the target stand. The .270 Winchester has an advantage in velocity over the 6.5 Creedmoor, though it's worth noting that we are comparing a 130 grain .270 with a 143 grain Creedmoor. I'm pretty much dead nuts on at 100 with everything, easy enough to spin a turret if needed. The Remington Model Seven is ready, willing and able to handle just about any task. Norma ballistic calculator online is very handy. Dimensionally, the .270 shows its lineage by sharing the same 0.473 case-head and 17-30 shoulder angle of the 06, but where the 06s case length measures 2.494, Winchester designed the .270 case at 2.540, so it wouldnt chamber in a .30-06 Springfield. The point blank range for a deer, for example, is generally regarded as six inches. This cartridge has 0.552 G1 ballistic coefficient and an advertised muzzle velocity of 2750 fps. Mag. It's only once the .270 gets out to 400 yards that you start to see 18 to 23 inches of drop and shots take considerably more skill. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pocket (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to share on Skype (Opens in new window), Click to email a link to a friend (Opens in new window), which is outdated after looking at more zero distances and the maximum point blank range concept covered in this other post, Different Zeros For Different Heros - Uncle Zo, https://unclezo.com/2020/11/26/different-zeros-for-different-heros/, .300 Winchester Magnum for Long Distance Shooting, Aero Precision 6mm ARC Upper Receiver (and M4E1 Lower), Hornady Precision Hunter 143 Grain 6.5mm Creedmoor ELD-X, Holosun 507C X2 with the ACSS Vulcan Reticle. bullets that the 6.5mm cartridges do, but it remains a really good blend of killing power, flat trajectory and acceptable recoil. -1.3 at 300 yards and -11 at 400 yards. My 140 gr load drops 33 inches at 500 Yards with, a 200 yd zero and is producing 1.25 inch, 200 yard groups for me. Full Member. For you younger hunters, if you arent familiar with Mr. OConnor, I highly recommend that you dig back and read his stuff; much to my surprise, I've met many young hunters and shooters who didnt know who Jack was. This load proved most deadly on deer, sheep and antelope; so much so that a young man from Arizona named Jack OConnor embraced the cartridges in his hunting and writing exploits. If you cant hit the dime at 26 yards, it indicates that your rifle (and/or you) probably isnt accurate enough to be shooting at long range anyway, because if your rifle is grouping 1-inch at 25 yards, for example, it will likely be 4 inches off at 100 yards and well off the paper at 300. Unlike the other WSMs, the .270 does not simply duplicate the ballistics of an existing cartridge. Select Caliber: .270 winchester Name Mfg Part # All Brands Caliber Style Weight (grains) This increases my margin of shooting error, while allowing me to not have to calculate or hold off the animal at 300 yards. However, I firmly believe it should be referred to as a 200 yard zero (and actually zeroed at that distance) that provides a usable, but approximate, secondary zero at 50 yards. A larger diameter extends the MPBR. Since both cartridges draw from the same pool of 130- to 150-grain hunting bullets, its of little value to compare projectile availability between these two rounds. 1 MOA at 200 yards is ~2.10. lb Muzzle Velocity ft/sec. . Recently got into a discussion about different zero distances that included the topic of the 50/200 yard zero distance for riflescopes. Plenty of room for error. Below are several 270 WSM ballistics charts from a few different ammo manufacturers to include Federal Premium, Hornady, and Remington. Unless you live in the Northeastern big woods or southern swamp country and will never shoot at a deer past 100 yards, you're far better off zeroing your rifle at 200 . Core-Lokts, but I have some Winchester Ballistic Silvertip 130 gr. Using ballistic software downloaded from Remington.com, I manipulated the zero range input data until it was optimized for the greatest point-blank range. That said there is still some truth to the claim that the 50 yard zero can be used to engage a target out to about 250 yards without having to worry much about making an elevation adjustment as long as the target larger than the projectiles trajectory deviation plus the precision deviation of the cartridge and rifle combination. Ammo2U.com ~ As a participant in the Amazon Associates program and other affiliate services, I may earn a small amount of money if you buy something after clicking on a link. All RifleShooter subscribers now have digital access to their magazine content. Right now it's hitting 2" high at 100 yards, directly above my aim point. Seventy-six years after the .270 broke cover Winchester launched the .300 WSM, and a year later in 2002 Winchester unveiled the .270 WSM. Gunslinger. Super X Power Points. It has been chambered in every type of rifle action, from bolt to pump to autoloader, and its one of those classic cartridges for which you can find ammunition just about anywhere. This bullet is very good for long-range and is available at Cabela's. That, coupled with a faster muzzle velocity, and you will be rocking 1000 yards. But I like to stay with the 6-inch rule of thumb because is allows for some shooter error, an occurrence that youd be naive to assume doesnt happen while in field positions shooting at wild game. In 1925 Winchester necked down the .30-03 to .277 and created the .270 Win., a sporting cartridge designed for medium-size game that shot flatter yet recoiled less than the .30-06 Springfield. Im going to start this exploration with what I consider a very common setup: an AR-15 chambered for 5.56 NATO with a typical sight offset of 2.6 and zero distance of 50 yards. Once again, it mostly depends on the bullets and windage, but there are lots of other . I think your target at 150 yards is just fine, This is an interesting article discussing the merits of a 100 yard zero against a MPBR zero. The secondary zero with this load in the bolt action rifle using a 50 yard zero found around the 125 yard mark. Perhaps more interesting, is that a 50 yard zero doesnt even come close to providing a decent secondary zero at 200 yards. You must log in or register to reply here. Its almost like the folks believed the 50/200 yard zero granted any rifle or cartridge mystical powers to get a good enough hit on any target up to about 250 or 300 yards. 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