Free: Contests & Raffles.
The reason there are so many Ruger upgrades is because they're necessary.
You can buy the all the components and reload leverevolution too. The powder is on the market now and the bullets have been for a while.
I watched a buddy of mine shoot a buffalo at about 50 yards with a 450 marlin using them, hit it 3 times and finally was able to get one to penetrate far enough to hit the heart. All 3 bullets fragmented bad and didn't have much penetration. I wasn't impressed