Shooting 800 Yards with Iron Sights, See Bullet Trail!

You tube ^ | Apl 8, 2014 | Grzzman

[expat1000]

Mosin Nagant 91/30 (We don't need any stinkin' smart guns!)

[MHGinTN]

Take the muzzle velocity of the bullet used and average that with the advertised speed at 100 yards, then calculate the amount any mass drops according to gravity in the time the bullet would take to make the 8oo yard trip. The rear sight of the Mosin is in meters, so the conversion should be done once the drop is calculated.

Here's rough/over simplified example. A bullet is said to have a 2000 feet per second average between the muzzle and 100 yards. 800 yards is 2400 feet, so it will take the bullet roughly 1.25 to 1.5 second to reach the target at 800 yards/2400 feet. Gravity is an acceleration fall rate. 32 feet per second per second. The object falls half the 32 feet in the first second and is falling at a rate of 32 feet per second at the end of the first second. So the bullet will drop approximately 16 feet to the target. The aim point of the barrel core should then be approximately 16 feet above the target.

[shibumi]

I think this chart will give you some idea.

The drop to zero at 200 yards is close to a foot.

At 500 yards it has dropped close to five feet. So at 800 yards he has to be aiming around 7 feet over the target to get to zero.

Note that this chart is made using the shorter M44, so the drop is probably slightly less with the 91-30.

[MHGinTN]

Extending my hypothetical example ... 'Or you can use a well designed chart which assumes the velocity for known loads and bullet weights.' ;^)

[dr_lew]

Ok, yeah, I saw it. Very definite in the slo-mo.

[shibumi]

I don’t know how to do that calculatin’ stuff.

So I just searched for a chart and there it was.

Math/physics genius I’m not. But if I know how high to aim, I can get by.

[expat1000]

Just add the two distances and drops together? That doesn’t seem right. Surely it would exponential, the drop at 4X the distance being much more than the 28 ft that method results in.

[shibumi]

I really don’t know.

The furthest out I’ve shot was 300 yards.
That was so long ago that I’ve forgotten how far over the target I aimed. And I wasn’t using a Mosy.

[shibumi]

Actually, now that I look at the chart more closely, it bears out what you’re saying.

Two and one half times the distance resulted in a five fold increase in drop. So at an even greater distance, the increase would (I suppose) be even more dramatic.

[jospehm20]

They are still cheap and so is the ammo. Rifle is $130 and 440 rds ammo is $90. Get it now if you want one because the prices on both have doubled in the past couple of years.

[TheOldLady]

Thank you for the ping, Sensei.

[dynachrome]

$199 isn’t a bad price for a m44 carbine (Chinese T53 ones are still cheap, approx. $125) since Big 5 wants $200 for their basic Mosins when not on sale. Cabelas has had some decent sales on 91/30 models.

[urbanpovertylawcenter]

18 yrs back I bought an “Enemy at the Gate” MN sniper rifle, say what you want but the Russians must never be underestimated. Hitler and Nazi Germany's finest were cut to shreds by this peasant class of neanderthals in WWII!

If you like the rifle, check out the SVT a 10 round semi auto version shooting 762 x 54r ammo. These are very accurate as well.

Our Lightweight Insincere African Ruler is in over his head with Vlad.

[mylife]

Instead of Mosin Nagant they should rename it Ivan Attitude.

[TalonDJ]

Well... no kidding. That is how physics works for EVERYTHING. Gravity causes an acceleration after all.

[shibumi]

I’m jes sientificlee iggernant.

[School of Rational Thought]

I couldn’t see a bullet trail.

trail looks like heat coming off street. That round was really lobbed in there.

[Lazamataz]

Love watching the air disturbance showing the bullet drop. Neat stuff.

[50mm]

Cool.