I have a rifle built on a Winchester M70 Classic action (pre 64) with a 1:12 twist, 24" Krieger #5 barrel and McMillan stock. It is too light in weight for the 358 STA round. As others have recommended, a muzzle brake is a sound investment. My rifle has iron sights with a quick detachable scope, so a muzzle brake was an "immediate" afterthought. Brass is easy to form from 8mm Rem Mag brass and A-Square did make ammo for it (got two boxes). I shoot both the 7mm STW and 8mm Rem Mag. They aren't in the league of the 358 STA, if loaded with heavy bullets. You are in the 375 H&H category. If you are going to shoot up to 200-225 grain bullets, just go with something like the 8mm Rem Mag or equivalent. You will find it far more manageable and less expensive. I also have a 416 Rem Mag and recoil from the 358 STA is in that category (without a brake). It is my opinion that the 358 STA doesn't come into its own until you get to 250-275 grain bullets. With the heavier bullets, comes increased recoil. As a previous post pointed out, "you will know the second you pull the trigger". You will need to use premium bullets such as Swift A-Fames, Woodleighs, etc. and they are expensive. Bullets with light jackets will just come apart. Dies are special order and mine cost around $200.00 for a three die set. I feel it is a little much for Elk and I don't hunt Elk with it. The Elk that I've taken have all been killed with a 300 Win Mag. As many have said, "A larger caliber weapon will never take the place of proper bullet placement". Game for the 358 STA start at Moose size and the great bears in North America are on the menu. I would have no problem using the rifle for lesser game in Grizzly or Kodiak country. It is accurate and will do it's job. However, this ain't Grandpa's deer rifle, unless you have deer larger that Moose. Handloading is a must, since factory loaded ammunition is almost non-existent. If you plan to hunt a foreign country, some have laws that state the head stamp (caliber) on the brass must be the same as stamped on the rifle. You may also find that some African countries have a minimum bore diameter that is greater than .358 for dangerous game. Many will argue that the .358 STA will shoot flatter and penetrate deeper than the .375 H&H. I agree. However, the 375 H&H has been around forever and it does works. Like the 30-06, 270, 30-30 in the lower 48, everybody in dangerous game country have ammunition for the 375 H&H. Can you carry enough .358 STA ammunition to a foreign country to re-sight your rifle with a new scope, if your scope is broken in transit? I have no desire to part with my 358 STA and would tackle anything in North America with it. However, I felt that you should know some of the things that I have encountered and learned about the .358 STA. Like others, I had to have one and have never regretted it.