As an example, let's take a .30-30 rifle firing a Federal factory load with a 150 grain bullet at a muzzle velocity of 2,390 fps. At the muzzle that bullet carries 1,900 ft. lbs. of energy. At 100 yards the energy has fallen to 1,355 ft. lbs. At 200 yards the energy is down to 945 ft. lbs. At 300 yards the energy has fallen to only 650 ft. lbs., which is below our 800 ft. lb. minimum. The velocity, by the way, is down to 1400 fps at 300 yards. One could conclude that the .30-30 is about a 200+ yard deer cartridge, based on its energy, and one would be right.
The Hamakua coast north oh Hilo on the Big Island of Hawaii. Drive guide with botanical gardens, waterfalls, Pepeâekeo Scenic Drive and Waipi'o valley The Hamakua coast north oh Hilo on the Big Island of Hawaii.
Weather Geography Districts. Waipio Valley (see more photos) on the Big Island's Hamakua Coast is the last and largest of the seven valleys east of the Kohala Mountains. Giant cliffs rising over 2,000 feet (610 m) surround the lush valley and give it an air of serenity, seclusion and mystery. Like many places on the Big Island, getting to the valley is somewhat difficult. If you plan to drive yourself, a 4-wheel drive vehicle is strongly recommended. The one-mile long road is paved, but steep and narrow. Alternatively, you can park at the Waipio Valley Lookout and from there hike down into the valley. Once you reach the valley, there is a black-sand beach towards the right (after a 10-minute walk), which lines almost the entire shoreline of the valley.