BTHP 80289 2960 2697 2449 2215 1993 1786 1323 1098 906 741 600 482 -1 517 0-7 -22 -454 M 223 Rem 73 gr. The 270 WSM should be able to run the 165 gr. There is a big difference in energy at that distance. Because of this, the mass gun builders produced a lot of rifles chambered in the 270 WSM but these guns only offered a slight weight savings over traditional long action magnums. vs. .300 Win. Mag. HORNADY AMMUNITION BALLISTICS V Varmint Express ™LE LEVERevolution® C Custom™ LM Light Mag HM Heavy Mag T TAP FPD™ M Match HORNADY PRODUCT LINES Ammo Description Velocity (fps) / Energy (ft/lb) Trajectory Tables CARTRIDGE BULLET ITEM # MUZZLE 100 yds 200 yds 300 yds 400 yds 500 yds MUZZLE 100 yds 200 yds 300 yds 400 yds 500 yds In comparison to the .300 Winchester Magnum, velocities are very similar between the two cartridges. (150 BT at 3300).435 +2.4" +2.6" 3"@150: 321.300 Win. It will allow you to tackle big game, offers flat shooting, energy, reasonably … Speed and Trajectory: The big difference here is that the 300 win mag will send a 180 grain bullet, which is at the top end of the 308’s abilities, at almost 3000 fps. The science of projectiles and firearms, or in other words, the info you need to make the kill! Neither the 300 Win Mag nor the 300 WSM can begin to achieve those velocities. That speed brings a nice, flat trajectory that makes it a bit easier to hit at long distance. As you can see, 6.5 Creedmoor is generally much cheaper than .300 Win Mag. It's defeating to purpose. However, it is also worth mentioning that there are a much greater number of .300 Win Mag ammunition choices available. I know there are ballistic advantages of the 6.5 - 140 gr AB, but for my hunting and shooting, not sure the difference is that big. To engage this 7mm RM vs. 300 WM argument you have to be willing to pick at nits because, bottom line, both cartridges (and many other magnums like them) are winners. In the table below, we have listed the average bullet momentum numbers over a 500-yard range for the forty compiled rounds. 338 Win. the 270 WSM is no slouch, but the 6.5 WSM has it beat hands down, extend the range to 1000 yards and the 6.5 really kills the 270 in performance Even the7mm WSM has better BC bullets at the same weight, the Berger 140 VLD in 7mm has a BC of .512 vs the 140 .277 of 497 gives all the velocity any rifleman would need, within sane hunting ranges. Ultra Mag. MAG. Same weight bullet, same velocity = same recoil. Recoil of the 300 WSM should be pretty much the same as the 300 Win Mag. At 500 yards the numbers get a lot closer, but are still significant. Mag. The .270 with 130 grain bullets has around the same ballistics as the 300 Win Mag with 180 grain bullets at ranges around 400 yards I do believe. Mule Deer Cartridge Showdown: .270 Win. Perhaps the additional velocity of the .270 WSM variant appeals to you, but I feel that for bullets up to 150 fps, the good old .270 Win. Ammo Description Velocity (fps) Energy (ft/lb) Trajectory Tables (inches) CARTRIDGE BULLET ITEM # MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd M 223 Rem 68 gr. In 2004 I took my 99 .270 WSM and a light .375 H&H. Mag. And again, while the averages give a slight advantage to the .300 Win Mag, there are several .300 WSM rounds that provide just as much or more bullet momentum than several of the .300 Win Mag rounds. RE: .270 WSM vs. .300 win mag What about the 7mmrm as an option. 375 H&H Mag. Size.300 Win Mag bullets are 7.8mm (.308 inches) in diameter, and the case measures 2.62 inches..30-06 bullets are also 7.8mm in diameter, but the case measures 2.49 inches long.. 300 Win Mag. 7.62x39. 30 Caliber.310” Diameter. Complete .270 Winchester ammunition ballistics Chart. Latest. Regarding the 6.5 PRC, I've still yet to see a single box of it at my local Cabela's, whereas there's somewhat of a selection of 270 WSM. Does the perfect muley cartridge really exist? I currently use 140gr accubond bullets from a 270 win or 264 win mag with similar BC (.496 and .509) at the same velocity. Well, lets look at the numbers. If you can't do it with a .270 Win., your next choice should be a .300 or .338 mag… 375 Blaser Mag. We put 3 popular cartridges to a head-to-head-to-head test. Have you ever considered the 270 WSM? A SAAMI spec 300 WSM chamber will really hamstring you with heavy bullets. 300 WSM. 300 Rem Ultra Mag. Mag. 4,5 mm 404 Jeffery 416 Rem. the wby is the way to go, not only do you gain fps and ft lbs of energy, but you have a case that doesnt have that sharp shoulder that the wsm cases all have, i have a 300wsm and i cannot wait to get rid of it, i have a 300 win mag also and i absolutly wouldnt trade it for the world! But, the success of the release of the .300 WSM yielded the subsequent release of the .270, 7mm and .325 WSM cartridges. Compare all .270 ammunition manufacturers on one easy to read chart. October 2, 2019. 300 H&H Mag. used the 7mm alot from the 80s and for me it was a pretty hard kicker not much less than a .300 Win Mag. There is quite a lot to talk about after looking at the graph. Matrix at 3,100 fps. It's pretty close to the 280 Ackley and since you're a reloader, obtaining ammo won't be an issue. Survival. Units of Measure Wins for the 300 Win Mag. The 175 grain bullet worked well on Elk and caribou for me. Mag. (165 Sp at 3120).410 +2.5" +2.3" 3"@145: 303.300 Win. 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