Strange velocity with Hornady 300 Win Mag Super Performance ammo.

[Why not?]

Was at the range Thursday sighting in a couple of rifles and chronographing the loads at the same time. Fellow there shooting an old Tikka 300 Win Mag asks what that I was doing with that instrument. Explained what it was and how it worked, and asked him if he would like to try it with his 300. Sure!

He was shooting Hornady Super Performance 180 gr SST ammo. The velocity?

Three shots: high 3064 fps, low 2786 fps, 278 fps difference!

Kind of disappointing at $60 a box.

Ted

 

[JasonYuke]

wow that std dev sucks man!

unreal i would have not expected that, i would have thought +- 25-40 at least

guess we dont need to ask about the accuracy, bit high to low i gather

 

[07blackwater]

That's why you hand load.

 

[SuperCub]

He was shooting Hornady Super Performance 180 gr SST ammo. The velocity?

Three shots: high 3064 fps, low 2786 fps, 278 fps difference!

Kind of disappointing at $60 a box.

I'd take it back for a refund, or at least contact Hornady and squeeeze them.


.

 

[tylerjwitty]

if he is buying ammo i doubt he cares too much even more so if he is spending 60 bucks a box

 

[blargon]

Might as well buy federal blue box. Sometimes, less IS more...

 

[Nechako Outdoors]

I've shot 3000+ fps rounds that said sub 1000 fps across the chrony if the light wasn't good. I wouldn't put too much faith into one bad reading

If it happened constantly I'd contact Hornady for sure

 

[Duncan Idaho]

In my own experience, I have yet to be impressed by either consistency or accuracy from Hornady. None of my rifles have held a descent grouping with Hornady ammo and velocities had a wide variation.

I have had much better performance from the Federal cheapo Power Shocks in most rifles that any other factory ammo.

 

[brybenn]

I'd bet the bullet didn't travel over the eyes the same way. I've had very consistant results with superformance ammo in 2506

 

[RememberTheSomme]

I've shot 3000+ fps rounds that said sub 1000 fps across the chrony if the light wasn't good. I wouldn't put too much faith into one bad reading

If it happened constantly I'd contact Hornady for sure

X2.

Diffusers on a sunny day, passing the round's over the cells at 4" to 6", and not to close to magnum's muzzle( I use 15 feet minimum) will produce best result's.

You did say he fired his own rifle, or did you shoot over the chrony for him?

 

[BigUglyMan]

Taking a heck of a chance letting some dude shoot over your chrony. Might just as easily have toqued the chrony!

 

[07blackwater]

Taking a heck of a chance letting some dude shoot over your chrony. Might just as easily have toqued the chrony!

I almost hate taking mine to the range fearing someone's going to want to check their load and shoot it. lol

 

[twistedbrilliance]

$60. A box for Hornady? That's nuts.

 

[Why not?]

For all the doubters here I have a Chrony and an Oehler with four foot spacing on the sky screens. It was a perfect day, bright overcast sky, and no one shoots over the Oehler unless I know they know what they are doing.

And now I read in another thread about 308 Win SuperPerformance factory ammo blowing primers. Right, it's faulty readings on the chronograph.

Ted