The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles 338-378 Accumark- How good?Go | New | Find | Notify | Tools | Reply | |
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| One of Us |
Has anyone got recent experience with the Accumark in 338-378? I am curious as to what kind of accuracy one can expect when using an out of the box rifle with Factory ammo. I recall Weatherby used to offer a 1 1/2" x 3 shot guarantee for their ordinary rifles from a clean cold barrel with Weatherby ammo, does this hold good with the Accumarks in .338 -378? Thanks jonathan | ||
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a local friend hunts with one... uses it for long range elk and takes them at 400 to 500 yds each season... he doesn't use factory ammo tho... he handloads using H 1000 and 250 grain partitions and hornady 250 grain SPs... he loads it about 10% below the max charge listed.. from the heads on the wall of his game room, evidently it has been quite effective.. he has also used it one mule deer and antelope, with of course instant terminal results.. | |||
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Ok,any more thought on this one?? I am considring one...  "That's not a knife..THIS is a KNIFE" ! | |||
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Absolutely fantastic round and in my Weatherby Accumark - sub MOA accuracy with factory loads and virtually any load I have come up with.  Of course it has more recoil than you can probably tolerate SAFARIKID  NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003 Don't Save the best for last, the smile for later or the "Thanks" for tomorow | |||
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 Ouch,that thing kicks!(Nooottttt!) I like as you can find them for $1200 now and just bolt a big azz scope on it and presto,long range ready....Do you think the 338-378 is any better for the far out stuff? Thanks"That's not a knife..THIS is a KNIFE" ! | |||
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I have a 30-378 and 338-378 (both Accumarks) and I haven't been able to tell the difference. Of course the 30 is hard to beat as far as bullet selection for handloading goes! NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003 Don't Save the best for last, the smile for later or the "Thanks" for tomorow | |||
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300 SMK's, and especially the Bergers will make the 338-378 a runaway. Love shooting precision and long range. Big bores too! Recent college grad, started a company called MK Machining where I'm developing a bullpup rifle chassis system.  | |||
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Both the .300-.378 and the .338-.378 offer just a little ballistic advantage over the "standard" Weatherby magnums at a rather large cost in recoil. Not much difference in the ballistic tables, not much difference in the field on game. From Weatherby's tables: .300 WBY vs .300/.378, 180 TSX @ 400 yards = 205 fpe difference. .340 WBY vs .338/.378, 250 Partition @ 400 yards = 249 fpe difference. But sometimes it's about having the biggest, rather than about practicality.... . | |||
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Kid...you're looking at a 338-378? Is it for a rifle or a handgun!!!! LOLOLOL Seriously, though, I've had both calibers, and both shot well. It is a lot of power for $1,200, you're right. You might want to look at the 300 & 338 RUM cartridges as well. Headspacing on the shoulder may help a bit in accuracy, and ammo is cheaper. I used a 300 RUM on my first African hunt, and took 16 animals with 17 rounds, up to Zebra, both Wildebeast, and a Gemsbok at 413 measured yards, so I have a sweet spot for that caliber. Unlike shorter-range calibers, accuracy with these rifles is not a luxury, but a must. If you shoot 1 1/2"-2" at 100 yards off a bench, that group starts to get very "iffy" at 450 yards and in real hunting conditions. Another thing to consider is energy at the distance you plan to shoot game. As velocity dies off at range, so does bullet energy, especially with light bullets. While you may be shooting a "cannon" at the muzzle, what might you have at 500 yards....a 30-30? | |||
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I have a 340wby in the accumark. It is a sub MOA rifle with a good hunting trigger from the box. The talley bases and rings are the ticket for the long actions. The 338-378 has a removable brake, but without the brake it really produces some shoulder pain. Brass is a bit pricier than the 340 as well. If you want to go out to 1000 yds, its the ticket though. John | |||
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I have a Accumark in 30-378 also. What loads do you shoot in yours? So far I have only tried the 200gr Accubond. | |||
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Not to be Johnny rain cloud, but if I were spending the bucks on a long range rig, I'd go for either the 338 RUM, or 338 Lapua. The 338 RUM can be found in Sendero trim making it affordable, but the Lapua is king and doesn't need 62,500psi to do it. The former can be had for a grand, the latter for about 3X that. The Remington has another advantage too: parts can be stolen from a 40X making it a far better rifle than Weatherby's offering. Not dissin' the Weatherby, but you're paying for a slightly worked over factory rifle that can't compete with a slightly worked over Remington. Now for the expensive part, glass. Such a rig demands a scope form the likes of U.S. Optics or Night Force. Either will cost almost as much as the rifle itself, and in my opinion are necessary. Even the MkIV Leupold will set you back over $1,000.00, and this is one place where something like a Shepherd scope just can't compete. | |||
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My 338-378 Accumark shoots very well for a factory rifle. IMO I think the .338 cal is better suited for Elk at distance. I like my Accumark for a packing out to 600yd gun. They are relatively light compared to alot of customs including my 338 Lapua AI. For 800yds and beyond I think customs are better suited for this type of accuracy expectation. | |||
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Hey Tom $1200 is that a new price or for a used rifle? just priced one here in the UK in left hand and its looking like £2,400, thats over $4,000 in your speak and Wby ammo loaded with Partition 250 grainers at around £120 per 20, thats getting close to $200 per 20, not looking such a good buy this side of the pond. Did you ever go for the 338 Edge? Jonathan | |||
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Jonathan, We can pick up Accumarks over here slightly used for $1,200 USD. Don't know if I'd spend $4,000 on one! You can buy a Sako TRG-42 in 338 Lapua NIB for less than that, and that's the Cat's Nuts (IMHO) for a long-range factory rifle. | |||
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Outstanding news! We have been hoping that Berger would make a 338 bullet, I am logging off and going straight to there website to see what weights! I hope they make a 300 gr. Happy Gnu Year to all. Joe P. | |||
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I think it's been right at 3yrs now that we have been hearing about this .338 300gr Berger pill. It's always the same story. Look for it after the first of the year. Wish they would just tell us what year that's going to be. lol | |||
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The 338 RUM, Lapua and 338-378 are all about the same on the terminal end. The 338 RUM is probably the cheapest route, but remington rifles typically do not have removable brakes like the Wby does.. The Lapua has expensive brass, much more so than the WBY. Not many rifles chambered for 338 Lapua are as reasonable as a Wby in the USA. The 338 RUM, 338 win mag, 338 Lapua, and 338-378 wby are all between 60kPSI and 64kPSI. Boils down to different strokes for different folks. A new Accumark in the US should go for $2000-$2400 or so. Wouldn't pay $4k for one. John | |||
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I have a Harris Talon in 338/378. If you are not familiar with these they are like a larger version of the pre-64 Model 70. They offered them chambered for many cartridges including the big Weatherbys. They went out of business a few years ago but they had a guarantee of half minute of angle accuraccy and mine lives up to that claim. I have a 28" barrel and do not find a need for a muzzle brake with that barrel length. I would rather have the longer barrel than the 2" used for a muzzle brake. The rifle weighs about 8.5 pounds. | |||
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The Lapua is CIP spected at 67,000 PSI. The Quality of the Lapua brand brass is worth the cost. The Lapua brand brass is 4000 Bar stronger than required and I've never ever stretched a primer pocket. Wheaterby brass is soft and the primer pockets will stretch within 3 or 4 loadings with top lods IME _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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I agree the Lapua brass is WELL worth the extra cost involved. Often 200rnds of brass will out last the barrel. Only problem with Lapua brass, if you even want to call it a problem, is because it's so tough it will take ALOT of abuse before showing the obvious signs of loose primer pockets which is a bad thing for some lesser than receivers. This is why some smiths won't do 338 Lapua on anything less than a custom receiver. | |||
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Wby brass is made by Norma, usually very high quality. Either you got a bum batch or your loads were higher than you thought. Lapua brass is high quality! John | |||
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I have both 30-378 and 338-378 and they are very accurate out of the box with handloads. I have never shot factory ammo in either. Both will average 1.25" at 200yds off the bench---I am not a great benchrest shooter compared to some competitive shooters I know. I am loading 101gr of RL22 with 180gr Swift A-Frames out of the 30-378 for 3450mv. I am loading 110gr of RL25 with 250gr Swift A-Frames in the 338-378 for 3150mv. | |||
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I know that Norma makes Weatherby bras and yes dimensionaly it is high quality, but it will not stand pressures or as many firings as the 338 Lapua Brass made by Lapua. 338 Lapua brass made by Norma falls ito the same category as the 338/378 brass _____________________________________________________ A 9mm may expand to a larger diameter, but a 45 ain't going to shrink Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing had happened. - Winston Churchill | |||
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What jwp475 said X2. Neither Norma or WBY brass is in the same league with the Lapua brass. | |||
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I bought a .338-.378 Accumark for a moose hunt in the fall of year 2000. I was dissapointed in its accuracy (1.5-2.0 MOA), but it was plenty good enough for a moose. After the hunt (during which I got a moose) I had some changes made on the rifle. The original barrel with its muzzle brake was replaced with a heavier Shilen 28-inch barrel without a muzzle brake. The stock was glass bedded in the action area and the first 2 inched of the barrel. The trigger which had a terrible pull was replaced with a Canjar single-set trigger. Now its good for about 0.75 MOA and I have no trouble getting 6-inch groups at 600 yards on a calm day. It has a Leupold 4.5-14X scope with range compensating dots installed by Premier Reticles with dots going out to 800 yards. It has taken quite a few deer past 600 yards with 225-grain Nosler Accubonds at 3,330 fps. The only problem is that recoil is pretty bad without the muzzle brake. | |||
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Now that sounds like a neat rig.....want to sell it?  "That's not a knife..THIS is a KNIFE" ! | |||
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No way would I sell it. - DON | |||
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Thats good to hear!  I may build a similar one soon....I did have a Viersco 338 Snipe Tac with a 32" Carbon Fiber barrel,titanium action,Camo carbon fiber stock,etc,etc that is under 10 pds w/o scope...Will push 300gr Sierra up to 3500 fps!(Used 505 Gibbs cases necked down)...I may need to get it back! Thanks!"That's not a knife..THIS is a KNIFE" ! | |||
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