I want to build a very accurate 2 - 600yd deer rifle. I am considering using one of these rifles I already have. 338 WM, 300 WM, 300 WTHRBY. The other option is to buy a new caliber (possibly a wsm) to build to be a custom hunting rifle. I have been using 30 cals pretty much since I started hunting whitetails (14 years) so I am comfortable with them and like the stopping power. As of now the 338 is defiantly my favorite rifle (model 70). The others - 300 WM ruger m77, 300 weatherby mark v. 300 yd shots are pretty much the norm where i hunt in ND nothing but miles and miles of rolling plains. Any suggestions are appreciated.
Keep in mind this will also be a "hobby rifle" and I plan to reload ammo for it as well.
It depends on your taste and desires. Do you want all the nice features, or will you be happy with great accuracy, and good function.
If you want all the extras, such as a fluted bolt, m16 extractor, extended magazine, etc, a Full custom is mighty nice, and better value for money.
If you're on a budget, or just don't need all the goodies, truing an existing action, tuning a factory trigger, and using existing bottom metal and magazine cuts $1200 or more off the out of pocket, and will get you a whole lot of performance
I want a tack driver rifle and just don't know if the ones I have would make a fine one or would I end up spending the the same as starting over. I am not limited to any caliber. I like a classic looking rifle but want the accuracy of a custom built rifle. This will be my go to rifle as well as a go to the range rifle. I would like to hear your options on your favorite calibers for LR (200 - 600yd) whitetail hunting and why.
I took your question to mean the goal was a custom rifle. The decision was to use custom components or an existing rifle as a base. I realize I may have misunderstood. Are you wanting a custom rifle, or to accurize a factory rig?
I've spent a lot of time in North Dakota. Beautiful country. 300 yards is close for that country.
Of your three rifles, I'd take the Weatherby. HS precision makes a nice stock. Bed the action, tune the trigger, and add a muzzle brake. Or, you could go custom, and include a trued action and a custom barrel, chambered in your favorite caliber.
The Winchester is a great action to customize. The 338 is a bit much recoil and a bit lacking in ballistic performance.
The win mag is a great caliber. The Ruger is a little tougher, but would work great too.
If you go new, or custom, I'd stay with a magnum in 7mm or 30 cal to buck the wind up there. A regular 7 Rem mag offers great wind bucking with 180 Bergers. The WSM's belong in a long action. If you go custom, they are superb. In 30 cal, the win mag, WSM, Ultra, and Weatherby are all great choices for your application.
For a nice custom, a 7 Dakota, or 300 Dakota would be fitting. They are superb cartridges.
A brake and good recoil pad will tame that Weatherby down to comfortable. Tune a a good load with 230 bergers, and 1000 yards will be a chip shot. They can be made to shoot well.
Sounds like you might be wanting a new rifle. We all want new rifles . A Tikka in a WSM would be hard to beat. Solid, smooth action, nice trigger, good accuracy. Pick the laminate stock for a little weight to dampen recoil, add rigidity, and prvide for good bedding. The model 70 in either caliber would be great. The big 7mm bullets offer an advantage in the wind.