The IOF .315 sporting rifle is a civilian version of the British military

Lee–Enfield rifle The Lee–Enfield is a bolt-action, magazine-fed repeating rifle that served as the main firearm of the military forces of the British Empire and Commonwealth during the first half of the 20th century, and was the standard service rifle of the ...

, chambered in the

8×50mmR Mannlicher The Austro-Hungarian 8×50mmR Mannlicher or 8×50mmR M93 is a service cartridge dating back to the days of semi-smokeless powder. It was later replaced by (and many weapons were rechambered for) the 8×56mmR cartridge. It is also known as t ...

cartridge rather than the .303 British military cartridge due to Indian gun control laws. The rifle is manufactured at

Ordnance Factory Tiruchirappalli Ordnance Factory Tiruchirappalli (OFT), also called Ordnance Factory Trichy, is a small arms factory operated by Advanced Weapons and Equipment India Limited based in Tiruchirappalli, Tamil Nadu, which was previously part of Ordnance Factory Bo ...

which manufactured Lee–Enfield rifles for the British colonial Indian Army and post-independence Indian forces. It's also made in Rifle Factory Ishapore. It has a box-type magazine which holds 5 rounds and uses an 8 mm cartridge based on the 8x50mmR Mannlicher, but is loaded with hunting-type bullets rather than military ones. The Rifle has a modernised version, which has a wire folding stock, picatinny rails, a carrying handle and a skeletonized pistol grip. The factory has added sling swivels on the grip and at the base of the fore-end. The stock folds to the left via a push button on the right side. For a sporting rifle the stock doesn’t look comfortable, it has just a single metal rod curved to give a shape of butt.

References

Bolt-action rifles of India 8×50mmR Mannlicher rifles {{Rifle-stub