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It is confusing when people ask for a deer load for a certain cal and give no other information in our part of the world we have a combination season until afew years you had to hunt deer and elk in the same season so my loads were tailored for that type of hunting. I've never found a need for anything larger than a 180gr bullet for either deer or elk. I've taken afew at some long ranges before it was called long range hunting. I look more to the bullet BC and velocity for the range than just bullet weight alone and does it have enought energy to drop and elk at 800yds and if it does than it's a good deer load also. When you start loading for the 30-338 and say with a twist of 1/10 and go to the 200gr bullet and with a velocity of less than 3000fps I wouldn't use that bullet I'd want to move up to alittle more case capacity like the 30-378 wby mine will put a 180br bullet over 3400fps. I'm thinking of a broughton 5c barrel 1/10 twist for a 30-338 I just had a 300wsm done up with that barrel and real happy with it kind of like to do it around that 180gr swift bullet. Well good luck.
What brass is better?7mag or 338mag,and what brand?
I tried 3 types of brass.
7mm rem mag brass, remington brand
7mm Remington mag federal once fired.
and 338 Win mag once fired, winchester brand.
I ended up using the new remington brass, since all I had to do was run it into a 300WM fl sizing die, then neck size for the bullet pull I wanted. I don't have to worry about turning or reaming the neck to control neck thickness. The remington also seemed to have a bit tighter primer pocket as well.
Also what is the case length.
2.500, no matter what case you use.
And last,how much free bore.
Um... im not sure what you mean by this question. If you mean how far from the lands to seat the bullet, whatever works best. Is this a rifle you already have, or are you trying to decide on a chambering? If you are doing a build,you can always cut the throat with a seper ate reamer after you do the chamber for whatever freebore you want, with whatever bullet you want.
Most of the work I did with this caliber was longrange deer and paper loads using SMK's, and reduced recoil practice loads.
The rifle I was loading for came with a lee collet neck sizing die. I don’t think this is a catalog item, but if you give them a call, they can hook you up. I also load for the 300WM. In simplest terms, the 30-338 is nothing more than a shortened 300WM. I ran the 7mm case into the 300 FL sizing die and expand it up to 308. No lube, no muss, no fuss. Then into the Collet sizing die, with the appropriately sized mandrel. If a die set came with the rifle, you have all the problems solved for you, I just use the 300WM die because I have it on hand, and I like to spend money on bullets, not dies. I was reading through an old publication about halfway through this project and came across one of Jim Carmichaels articles. He describes setting up stepped necks… leaving the lower half the larger fire formed diameter, and sizing only the top half of the neck. There are still some guys that do it, but its not the most popular technique now. Just to prove the feasibility of it, I loaded a few with my 300WM neck sizing die. Couldn’t get the neck tension quite as high, but when using as a single shot rifle, it doesn’t matter a bit. Again….$25 die set vs. $50-$75 set. There are plenty of great neck sizing dies out there, but most work best with lube. The collet die runs dry. Its just one more thing that gets me from the loading room to the range faster. My runout is .001 to .0015. Any 30 caliber fl die you have on hand with a tapered expander will work provided the shoulder is larger than the 7mm. 300WM, 300WBY, 300RUM, 30-378 ect….