Greenhouse gases are the cause of Greenhouse effect.The greenhouse gases which include CO2, Methane etc. trap the heat in the Earth's atmosphere and don't allow it to escape.
The weapon is fitted with a Leupold Mark 4. The rifle is also similar in appearance to the TAC-338 rifle that Kyle used in real life. McMillan TAC-338A sniper rifle with Harris bipod, Leupold Mark 4 scope, and AN/PVS-22 Universal Night Sight - .338 Lapua Magnum. Kyle taking aim with the rifle. Right side of the rifle.
Kyle made his record-setting shot with this .338 round. It has a maximum effective range of 1,910 yards, which makes Kyleâs 2,100-yard shot even more impressive. Yes, tactical bolt action rifles are extremely, extremely expensive, except for the Tikka T3 CTR weighing in at around $1000.