Then the same cartridge case sized to, 338 WM 1958, 264 WM in 1958. Once again like everyone else has mention it would be the brass that would sway me this direction. The comment about the .458 Win.Mag. Good brass is important and lapua is hard to beat. The 338 Lapua is a better round, but the availability and cost of both the rifles and ammo are too high. The.338 LM rounds are a larger caliber than the.300 Win Mag and have a slightly longer case and overall length. The .300 loaded with 200s at 3150fps is a much better long range cartridge compared to a .338 Win Mag loaded with a 200 at 3000fps. Sierra game king. The article addresses the issue of using the larger diameter 338 Lapua chambering in 1 1/16 thread tenon 338 RCM might come in a shorter package but you'll find 338 Win Mag ammo and components everywhere. I built a 338 Norma a few years back (see sig). Good for North America’s larger game. The.338 Remington Ultra Magnum has a similar case capacity as the.338 Lapua Magnum and somewhat lower than that of the.338-378 Weatherby Magnum. The ballistics chart below compares the trajectory of Hornady Precision Hunter and Winchester Expedition Big Game and factory loads for … This data comes from Nosler's load data. The main reason for me going with the 338 Norma Mag over a 338 Lapua was the usable case capacity while DBM feeding, and the positive reviews that I have read about it. Win. All of these can be pushed well over 2800 as well as my rum but , we found, that to make them ultra accurate you had to back all of them to between 2700-2750. They’ll both launch a bullet at 2950 fps. Like everything else on this site..distance matters ! Gun Parts - Stocks, Barrels, Actions, etc. I just was not impressed with the cartridge or its ballistics, since it's basically nothing more than a .338 bullet stuffed into a 7mm RemMag case. To him the 338 should only be used with 250 gr. This would be a lighter weight hunting rig with ti action and abs barrel. JavaScript is disabled. Partition and other bullet companies came out with 225 gr. The 338 Winchester Magnum is arguably the best. The barrel I have is a Proof Research that will finish at 28". From what I see, they are pretty much neck & neck with the same weight bullets, but where the 338 shines is the availability of heavier bullets. In my opinion, the 338 Lapua doesn't have anything on the 338 rum with the exception of better brass. I know now that better brass is out there but maybe tough to find. I think I just built my favorite hunting rifle. shoots flat, hits hard, and fits in standard length actions. The 338 Edge is built on the 300 Rem Ultra Mag case and present no concerns for you Timberline Magnum action. Mag. I, for the longest time, wanted to build a 338 edge but now I am torn. Here's a short Black bear hunt with my friend's, Dion and Nev. Dion took a nice black bear after having some great SE Alaska weather. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, o Great post guys. Mag. I hunt with a 338 Edge but that will change for the 2016 season, by Sept I will be out in the Alaskan wilderness with a 338 of my own design....... here is a comparison pic I made a few weeks ago to compare the other 338's to my wildcat 338 Long Range Hunter (338 LRH)............... a long throated design made to run in Accurate mags with Zero impact on case capacity, I can use 338 Norma Mag, 300 Norma Mag, 423 Dakota brass and cut down and formed 338 Lapua brass.......... no shortage of brass there..... unlike the RUM brass of late. It may not display this or other websites correctly. Using the same weight bullets to keep velocities comparable, is there enough difference to justify having both calibers? is: 5.5% more efficient than the … I have found that the .338 Win Mag, with it's heavier and larger projectiles, breaks down heavy game better It is one of the most powerful.338-caliber rounds in … Just my 2 cents. Winchester came out with ammo in 200 and 250 gr. The 300 RUM was designed and built as a long range rifle to top the 300 Weatherby and was the top factory load till the 30-378 Weatherby hit the market. My go to rifles are 7mm and below. The following ammunition cartridge ballistics information and chart can be used to approximately compare .338 Lapua Magnum vs .338 Winchester Magnum ammo rounds. Anything 30 caliber besides the occasional 30-06 like the rum and if had. When compared to others, the.338 LM is at another level action and abs barrel bullet came. Sporter as being too long for most of my hunting favorite hunting rifle the... 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