Hodgdonâs 4831 appeared on the market in 1950. Had I been betting on which rifle would give the best groups, I would have put my money on the Sauer, but given the Mauserâs sterling performance, runner-up ainât bad. This rifle is a 1949 Model and I am the second owner, since 1973. This was before bipods. In my experience, a load that is excellent with one rifle may be mediocre in another, and no load ever proves to be accurate with every rifle. Very accurate and works great for deer hunting. This Biesen has been my standard hunting rifle for the past two years and has proven itself extremely accurate with my usual hunting load. Hey fellow Oklahoman, I have been loading a 270 Winchester for about 33 years and my current deer hunting load is 56 grains of IMR 4831 with a Speer 130 grain boattail bullet in Winchester cases with a Remington 9 1/2 primer. Purported to be the most extensive test of .270 Winchester accuracy ever conducted, the end result was a complaint about factory ammunition, as most handloads (130 to 150 grains) grouped less than an inch at 100 yards. Sierra Game King or the 150 gr. If nothing else, this is one more caution against blithely using ancient loading data without studying every component very carefully and â always â starting low and working up. I was going to load some rounds tomorrow and Thursday afternoon. Man, I am sorta saddened that you sold that WSM! I thought I had some WLR or even Remington primers for my dad's 270's but I don't. The magnum primers will generate somewhat higher pressures, which you compensate for by working up to a safe load, as others have already suggested. I was planning on creating several small batches (5-6 rounds each) and see what the gun likes. In my friend’s pre-64 Winchester, these two loads shot to the same point of aim at 100 yards, a handy fact if one is inclined to carry two bullet weights on a hunt. Using a 130gr bullet, 58.5gr to 60.0gr of H4831 seems to be nirvana territory in all 3 of these rifles. Another odd thing is that, as far as I know, the barrels on the other four rifles were all hammer forged while the Biesen has cut rifling. Haven't heard of many Tikka's that don't shoot well though. It delivered high velocity combined with excellent hunting accuracy. I have been using IMR4350 powder for over 40 years and Charlie might have me beat by a year or two. No cratering, primer flattening or sign of even normal case expansion occurred. Its no wonder 4350 is so popular in the .270. The Federal 270 Win case that I measured holds 70.2gr of water. Each powder charge was weighed, and all the powder came from the same new container of IMR-4064. The other test rifle was a new Winchester Model 70 Featherweight with a Leupold VX-III 2.5-8x 36mm riflescope. The added -30 stands for the standard load of 30 grains (1.9 g) of early smokeless powder and is based on late-19th century American naming conventions for black powder-filled cartridges. Classics powder for the .270 Win is H4831, it is what Jack O'Conner used. Good luck BC88, hope the rifle turns out to be real good. I was tempted to shoot it some more to see where the tail would lead, but refrained. There was, however, one hitch: Nowhere, in any modern loading manual that I could find, is this charge listed. cartridges consists of (l. to r.): .270 Win., .270 WSM and 6.8 mm Western. If anyone wants others just let me know here or on the other side :-) I remember when you got that rifle. I wouldn't hesitate to use the 140gr Sierra's for anything the .270 is suited to. 4831. Slower powders are the best for the 270. Read Book Sierra Manual 260 Remington Load Data developed in a Ruger M77 rifle. The powders then available to him were the IMR series of 3031, 4064, 4320 and 4350. My test rifle was a Sauer 404, a strong, modern design that has delivered fine accuracy. Hornady advertises its 35-grain load at 3100 fps, but I find it to be even faster in some rifles. BW For a factory load, the winchester 150 gr. The writer was Ken Waters and the subject was the .270 Winchester. I've decided to use 140gr ABs in my .270 but the other two still use 130gr bullets on WTs with boring perfection. When it comes to the release of new projectiles, reloading data can be difficult to find. One final note worth mentioning is that modern bullet designs like the ELD-X have given .308 Winchester a huge boost in the impressive ballistic coefficient game. Where such data is found, the powders listed are usually fast-burning handgun powders, not the slower-burning stuff that can provide more serious performance in a stronger action with a longer barrel. Certainly nothing to complain about with groups that small. You may or may not have to reduce the charge from standard primer data. Load Data. If you're unsure, or just want options, check as many boxes as you'd like. 115 SW Columbia St | Bend, Oregon, USA 97702 | Toll Free: Nosler Showroom / Open to the Public: Monday - Friday 10:00 am to 5:30 pm PST. StaBALL 6.5’s burn rate and load density is good for popular cartridges such as .223 Rem, 6mm Creedmoor, 6.5×47 Lapua, 6.5 Creedmoor, and .270 Win. After sorting that out, I shot the group with the Mauser M18 a day later. Click "Get Data" to view results. By 1966 OâConnor had pretty much settled on H-4831 as the powder for the .270, propelling a 130-grain bullet (his favorite weight). Complete Your Load Pack Here!.270 to .338. Phone: (877) KENTON-1 If you are shooting 130gr bullets out of you 270 win. A combination of Federal Gold Medal Match primers, Nosler cases, Sierra bullets and IMRâs venerable 4064 powder was tested in multiple rifles. Guys, Finally i was able to get my hands on Sierra Match King for .270 Win cal; 135 gr. 270 Winchester Short Magnum 100 270 Winchester Short Magnum 130 270 Winchester Short Magnum 150 270 Winchester 90 270 Winchester 100 270 Winchester 130 270 Winchester 150 270 Weatherby Magnum 100 270 Weatherby Magnum 130 270 Weatherby Magnum 150. I was looking at a three shot string from the late 80,s I chrony checked using 130 sierra bullets. If I intended to use this load for hunting with any of these rifles, I would probably start inching up the load, a quarter-grain at a time, watching for pressure signs while expecting the groups to tighten. Dan, I am trying to remember? It simply never failed. This conclusion is contrary to every burning-rate chart I have ever seen, but he arrived at it by comparing powder charges with the resulting velocities. Looks like you are well on your way to some fine looking hunting loads. The manager of the Top Gun Sportsmanâs Club in Lonedell, Missouri, Burt Reynolds, shot three of the rifles and I shot the other two. Powder Bul Weight C.O.L. Those two things brought the groups down to a more pleasing size I can live with. ATTENTION: New reloading data must be opened as a PDF document in an up-to-date compatible PDF viewer. Even Jack O Conner used it alot before he discovered Military surplus No. The load data provided is to be used to their exact specifications. 270 Winchester; 270 Winchester Short Magnum; 7mm-08 Remington; ... Home / Ammunition / 270 WSM / 270 Winchester Short Magnum 140gr Sierra Tipped Gamechanger. Cant get it to group. I have used reloader 22 and h4831sc with great results. I traded my mag primers for CCI 200's. Those groups at 100 yards was with an old Lyman Perma Center 4X scope. I am waiting to borrow my buddies electronic scale to see how far off my scale is and I will also use it to load a few rounds in the next weeks. Not a thing, except perhaps that everyone should buy an M18 to keep as a spare. I've had several 270's over the years and still have a pre-64 M70 and the JOC custom Tribute rifle. HPBT C.O.A.L. Well, I finally found some free time to work up some loads. I probably could switch to CCI 250's and freshen the load a little. Moorpark, CA 93021. Once again im using IMR4831. Free Ballistic Calculator. If you load both cases to the same pressure, with the same bullets, using optimal powders and optimal seating depths for both guns, and shoot them in the same length barrel, the 6.8 Western will win. Both Marlin and Union Metallic Cartridge Co. also dropped the Winchester appellation, as they did not want to put the name of rival Winchester on their products. For more calibers not listed, please contact Sierra for assistance! Min Charge Max Charge Optimal Charge Bullet Make Bullet Type The Blaser R8 was right in there, were it not for one flyer, while the Model 70 had two flyers. I am only getting around 2940 out of the 24 inch barrel any more. Given the .270 Winchesterâs case capacity and its later success with H-4831, which is the slowest-burning powder of those mentioned, it would seem logical that the best combination in the years before H-4831 became available would have come with either IMR-4350 or 4320. However, OâConnor did not get the accuracy he wanted with 4350 and he found that in his .270s, IMR-4064 proved to be slower burning than 4320. Another point to keep in mind, given the fact that all of these rifles have short barrels (21 or 22 inches) is that IMR-4064 should deliver higher velocities than H-4831 simply because it is a faster burning powder. From left to right: 27 Nosler, .270 Weatherby Magnum, .270 WSM, .270 Winchester, 6.8 SPC May 28, 2019 By Layne Simpson During most of its 93 years of existence, the .270 Winchester has been quite popular among hunters, and for as long as I can remember, it has made the Top Five big-game cartridge list at RCBS, according to reloading die sales. lets take the chart above there is about a 2800 fps at max load in a 26 inch barrel. HPBT140 gr. 270 Winchester; 270 Winchester Short Magnum; 7mm-08 Remington; ... Home / Ammunition / 270 Winchester / 270 Winchester 140gr Sierra Tipped Gamechanger. Speerâs Manual for Reloading Ammunition Number 6 (1964) also draws the line at 49 grains. Pet Loads and Handloader are registered trademarks of Wolfe Publishing Company. Although this IMR-4064 group is not bad, the rifle has shot much better in the past. I had great luck with Rl22 and H4831 with 140s and 150s. BW Case: Winchester Twist Rate: 1:10" Charge Velocity Charge Velocity Load Powder (grains) (fps) (grains) (fps) Density (%) RL 15 54.0 3143 58.0 3344 87 H414 61.0 3206 65.0 3398 88 IMR 4350 62.0 3208 66.5 3422 101 H4350 60.5 3195 65.0 3397 95 Ht 64 0 3244 67 0 3392 93 Minimum 270 WSM Maximum Minimum Maximum Hunter 64.0 3244 67.0 3392 93 The comment that stuck in my mind was the one about the IMR-4064 load working well in every single .270 he tried. Make sure this round will fitContinue Reading For bullets, I laid in a supply of Sierra 130-grain spitzer boat-tails, a highly accurate bullet that I have used for both hunting and target loads. Back in the "day" I worked up a load for the 110 gr Sierra in a 26" Douglas barrel - Mauser action rifle in 270 Win. the berger has a short bearing surface and the 175 matrix or the pictures of the 175 sierra have a lot longer bearing surface. Select your cartridge type from the drop-down list. Wolfe Publishing Company | 2180 Gulfstream Suite A | Prescott, AZ 86301. What does any of this prove? Except for minor differences around the striker indentation, they were uniformly almost perfect. It was modeled after the classic Mauser-style 1903 Springfield but used the original, longer .30-03 Springfield as the parent case. This GameChanger is bad medicine on deer, elk and bear. Users browsing this forum: Google [Bot] and 5 guests, Nosler Inc | Privacy Use Order Processing. Manufactured by Jackson’s Gold Country Ammo 270 Winchester Ammo… 140 Grain Sierra GameKing SBT boat tail bullets New Starline brass Price per 20 rounds 2617 FPS based on load data Ships in twenty-round ammo boxes Fresh inventory ***IMPORTANT NOTE… OAL (overall length) is 3.282. 270 Winchester Short Magnum 140gr Sierra Tipped Gamechanger. Sierra’s GameChanger ammunition breathes new life into this fine old cartridge. One of the test rifles was a .270 Winchester built by Al Biesen on an FN Deluxe Mauser action scoped with a Swarovski Z3 3-9x 36mm. Col Colt, my 1949 Model 70 Custom stocked .270 Win still shoots groups about the size of yours. This assortment of cases was fired in five different rifles. TMK Match165gr.TGK C.O.A.L 2.750 2.750 2.800 2.800 2.800 2500 2600 2700 2750 2800 2850 Itâs difficult to argue with that. I have IMR 4350 and Reloader 22. Both do very well with 59.5 gr of H4831 and Federal magnum primers with the 130 gr bullet be it Hornady or Nosler. Gunpowder Charge Weight Velocity m/s Velocity fps; Norma URP: Max 54.9 Min 52.0: 941 884: 3087 2900 Yep, no problems with using magnum primers, just work up carefully as you normally would. 2.750" 539 V • RIFLE RELOADING DATA INDICATES MAXIMUM LOAD– USE CAUTION LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED. You'll do fine. I am losing some velocity in my .270 Win. It also has a very tight chamber, which helps account for the higher velocity. bullets tear up too much good eating meat. Again, it is a very consistent group, and without the two almost-flyers (top and bottom) it would have been fantastic. The stronger .240 load generates recoil very close to that of an 8 pound .308 Winchester rifle, firing a … That give the Western a solid 10% increase in capacity. I have IMR 4350 and Reloader 22. I use Norma brass, Federal Match 210 primers, sometimes Federal Mag 250 with RL-22 in the winter. Now that I hooked you guys into my thread. 7mm (284 dia) 7-30 Waters 110 7-30 Waters 130 7-30 Waters 145 7mm-08 Remington 110 7mm-08 Remington 130 I've had best results in the .270s I've loaded using the aforementioned powders as well. Obviously, this load needs to be approached with caution, especially given the many changes that have taken place in the 70 years since it was first published. 530 New Los Angeles Ave #115. 165 gr. Winchester 748 is a ball powder and the choice for loading 223 Remington cartridges. This Blaser has been delivering fine accuracy with many different .270 loads for a decade now, and this test was no exception. My first .270 would have been in 1966 (a Mannlicher Schoenauer) after I got out of the service, so 47 years for the .270 Win.? Other .308 based wildcats, such as Warren Page’s .25 Souper and the .270-308, attracted some interest, but were never standardized. They included the aforementioned Sauer 404 plus a Blaser R8, a new Mauser M18, a new Winchester Model 70 Featherweight and a custom rifle built by Al Biesen in the 1980s on an FN Deluxe Mauser action. The most interesting single thing about this rifle is that, had I used the now-common method of averaging three, three-shot groups, it would have delivered accuracy of about .75 inch. Primers looked perfect, the brass showed hardly any sign of expansion, bolt lift was silky, extraction was effortless and the velocity never once hit 3,000 fps. I recently sold my Browning XBolt 270 WSM and purchased a Tikka T3 SS 270 Winchester. This latter fact is significant because the early references to the load by OâConnor and Waters are not specific about barrel length. The very first âPet Loadsâ article appeared in the May 1966, issue of Handloader. Sierra GameKing + Varget Reloader 22 is recommended in the sierra manual. If OâConnor used Winchester brass, which has significantly lower capacity than most other brands, he would naturally have higher pressures, higher velocities and possibly better accuracy as a result. The Winchester 34-grain load also has a tendency to exceed its velocity rating; it clocked an average of 3144 fps in the 24-inch barrel of a Savage Model 40 I worked with. With H-4831, originally known as â4350 Data Powder,â OâConnor achieved both excellent accuracy and velocities pushing 3,200 fps, a significant increase over 4064. The 270 Winchester just got a little better. However, I've had friends who have .270's that seem to digest the 60 grain load with no problem, and at least one of those was in a Winchester 70. H4831, IMR-4350, RL-19 & 22 have all given me excellent hunting loads. The rifle has shot factory ammo fairly well. 270 Winchester m Universal stock# 1835 1845 4440 Barrel length& twist 24''/ 1-10'' desc. The 6.5 PRC (left) has just about the same powder capacity as the 270 Winchester (right). At the time, the best-known proponents of the .270 Winchester were Jack OâConnor (then Shooting Editor of Outdoor Life) and Colonel Townsend Whelen. 2.750" #2140 .308" 165 gr. The brass I used is Nosler, which has notably greater capacity than Winchester brass I have measured. I got it going very nearly 3400 FPS w/56 to 61 gr of IMR 4350. ... All load data should be used with caution. .384) at 3,030 fps. Only one, the custom rifle built by Al Biesen in the 1980s on an FN Deluxe action, recorded an average velocity of more than 3,000 fps (3,051 fps). I was planning on creating several small batches … I feel the 130 gr. Due to the smaller bore, it doesn’t quite achieve 270 Win. .270 Win load data from Sierra Reloading. If anybody out there really wants to approximate the long-range ballistics of one of the smaller, trendy 6.5mm rounds with their “antiquated” 1:10 twist .270 Winchester, the Berger comes very close. The .32-20 has been chambered in some good, strong rifles, including (most famously) the Winchester ’92 and the single-shot Winchester Low Wall. .223 Rem 5.56 x 45mm .224 Valkyrie .243 Winchester .25-06 Remington 6.5 Grendel 6.5 Creedmoor .270 Winchester .277 Wolverine 7.62 x 39mm 7mm-08 Rem 7mm Remington Mag .300 AAC Blackout 30-30 Win .300 Savage 7.62 x 54R .300 WSM .300 Win Mag .308 Winchester .30-06 I was going to load some rounds tomorrow and Thursday afternoon. 270 Winchester Ammo w/ Sierra 90 Grain GameKing Soft Nose Bullets I have been trying to work up a load for the 90gr sierra varminter for this same gun. The second-best group (bottom left) was shot with the Sauer 404 (1.59 inches). My belief is that lower brass capacity and resulting higher pressures played a big part in the results that OâConnor, Whelen and Waters wrote about a half century ago. I found that recoil was sufficient to miss a significant number of rock chuck shots. The Mauser M18 used to test a 49.5-grain charge of IMR-4064 with 130-grain Sierra spitzer boat-tails was set up with a Swarovski AV 4-12x 50mm riflescope. If the load charges appear to be blacked out follow these steps: ... 270 Winchester 270 Weatherby Magnum 270 Winchester Short … A Blaser R8 was topped off with a Zeiss Victory riflescope. If you handload for .223 Remington, 22-250, 6.5 x284 Norma, .308 Winchester, or .300 Winchester Magnum, check out this new reloading data. it wouldn't shoot groups like that at first. 308 Winchester m Universal Barrel length& twist 24''/ 1-10'' stock# 2145 2140 2200 7768 4665 Case/prim er Winchester/ WLR desc. One thing we should not lose sight of is that, even though this was a recognized, acceptable load in the 1950s and â60s, recent manuals advise against exceeding 47.5 grains of IMR 4064. Find what you need in four easy steps. I believe most of us have made that choice at one time or another. This is a new-production Featherweight.