Getting to a mile(1760yds)
Posted: Sun Jun 16, 2019 11:26 pm
I had posted before that I was going to attempt to shoot a mile with my 300WinMag.
Shooting a 208gr bullet doing 2940fps, will be subsonic at mile shooting at sea level.
Things needed to be done to get to one mile:
1: 20MOA rail on rifle.
2: Burris XTR adjustable rings(I set this at +30moa) Rifle was zeroed at 600yds to have full internal adjustment of scope available, which was 70moa.
3: Scope was a Sightron S-Tac 3-16 with a MOA3 reticle
With a 600yd zero, it is +15moa to 1000yds, +60 moa to a mile.
With only a 24in barrel, I was going to be limited on velocity on the heavy bullets I wanted to try. With a muzzle velocity of 2940fps, the 208gr Hornady BTHP was going transonic right around the 1500yd mark. At 1760yds retained velocity was just below 1100fps according to my ballistic app. All that remained was to see how accurate the bullet was once it went below transonic.
I was not able to go shoot this morning, but my buddy wanted to try the mile with my rifle, so I made 25rounds for the attempt. Hornady brass, Retumbo powder, Winchester LRM primer
He shot 8 rounds, 3 hits at a mile.
Rifle is a stock Savage 110FP in 300wm, in a Manners T2A stock with a detachable mag setup, stock trigger(pre Accutrigger), threaded for a Surefire muzzle brake. Little more challenging at a mile than a 338 Lapua Mag.
SY
Here is a not so great vid of the hits, note there is no sonic crack, just the impacts on steel. You can hear the report of rifle way off in distance.
Shooting a 208gr bullet doing 2940fps, will be subsonic at mile shooting at sea level.
Things needed to be done to get to one mile:
1: 20MOA rail on rifle.
2: Burris XTR adjustable rings(I set this at +30moa) Rifle was zeroed at 600yds to have full internal adjustment of scope available, which was 70moa.
3: Scope was a Sightron S-Tac 3-16 with a MOA3 reticle
With a 600yd zero, it is +15moa to 1000yds, +60 moa to a mile.
With only a 24in barrel, I was going to be limited on velocity on the heavy bullets I wanted to try. With a muzzle velocity of 2940fps, the 208gr Hornady BTHP was going transonic right around the 1500yd mark. At 1760yds retained velocity was just below 1100fps according to my ballistic app. All that remained was to see how accurate the bullet was once it went below transonic.
I was not able to go shoot this morning, but my buddy wanted to try the mile with my rifle, so I made 25rounds for the attempt. Hornady brass, Retumbo powder, Winchester LRM primer
He shot 8 rounds, 3 hits at a mile.
Rifle is a stock Savage 110FP in 300wm, in a Manners T2A stock with a detachable mag setup, stock trigger(pre Accutrigger), threaded for a Surefire muzzle brake. Little more challenging at a mile than a 338 Lapua Mag.
SY
Here is a not so great vid of the hits, note there is no sonic crack, just the impacts on steel. You can hear the report of rifle way off in distance.