55gr zmax vs 55gr vmax (.224) question

[rockrat]

I was shooting my 22-250 at our range the other day at a 500 yd steel target. Got the scope dialed in with the 55gr zmax bullets w/cannelure and then switched to some rounds that I had loaded with 55gr vmax bullets.

I figured that the BC of the zmax would be a bit less than the vmax, because of the cannelure (just looked them up, BC same for both).

Suprised me that the vmax bullets impacted lower than the zmax bullets, by about 3".

What would have caused that? Was it the cannelure causing the difference, because of different airflow?

thanks

 

[CatShooter]

I was shooting my 22-250 at our range the other day at a 500 yd steel target. Got the scope dialed in with the 55gr zmax bullets w/cannelure and then switched to some rounds that I had loaded with 55gr vmax bullets.

I figured that the BC of the zmax would be a bit less than the vmax, because of the cannelure (just looked them up, BC same for both).

Suprised me that the vmax bullets impacted lower than the zmax bullets, by about 3".

What would have caused that? Was it the cannelure causing the difference, because of different airflow?

thanks

Often, bullets that are similar or even the same design or same BC, will leave the barrel at a slightly different point in the vibration pattern.

You must be sure that the 100 yd zero is dialed in for each bullet, before you can make long range drop evaluations for bullet comparisons.

 

[boltman223]

Well they are for zombies, they have to shoot flatter, duhhh lol

 

[5spd]

Both of those bullets shoot identical in my 20" Ar15 to 400 yards.

 

[moorepower]

Were you you shooting into the wind? Yes, lame but possible.

 

[Tommie]

Are you crimping the bullets?

 

[P1ZombieKiller]

Well they are for zombies, they have to shoot flatter, duhhh lol

as an expert in the area of killing zombies..... Flatter is better.

I'm in the business of Killing Zombies.. and brother.. business is good.

 

[vmaxpro]

Are you crimping the bullets?

Kinda what I was thinking...

 

[basshusker]

+1 on this previous observation

"Often, bullets that are similar or even the same design or same BC, will leave the barrel at a slightly different point in the vibration pattern.

You must be sure that the 100 yd zero is dialed in for each bullet, before you can make long range drop evaluations for bullet comparisons."
Justin

 

[bigedp51]

Well they are for zombies, they have to shoot flatter, duhhh lol

as an expert in the area of killing zombies..... Flatter is better.

I'm in the business of Killing Zombies.. and brother.. business is good.

And some of us stay under the radar, keep in practice and don't advertise and let the Zombies know who we are. :

When the Zombies over run your place P1ZombieKiller I will quietly stop by and pickup the remaining rifles and ammo.

 

[P1ZombieKiller]

good luck Big Ed. By the time you load all those, the Zombies would have already pick your brain splatter in between their 4 teeth they have left.
I, on the other hand, will be a little better prepared.