ballistic book

[Guest 300ultramag.]

Building a new ballistic chart need some help

 

IMR 4350

Nosler Ballistic Tip

180 gr.

 

 

My rifle is 24.9 in. hold-over at 500 yds., 47.5 in. hold-over @ 600 yds etc.

 

 

 

 

 

I misplaced my ballistic book. If any one has the muzzle velocity for the above stated load. any help Id appreciate it!

 

thanks

 

pic for ur time.. courtesy of AD

[rcdinaz]

Not sure what powder charge you are using but asumming 80gr from the books you would be right at 3,000fps give or take 50fps. This looks like it matches up with the numbers you posted.

 

From Shooter for Android

500yds - -42.9 (I think you transposed your numbers)

600yds - -69.4

700yds - -103.7

800yds - -147

 

I would test this at the range for sure as my 300 RUM seems to get a little more speed out of some powders than others compared to what is published. I also think this load looks light a lot of case capacity left so H1000 or Retumbo will probably get you more velocity. My RUM is more consistent with the H1000 but a little less velocity than Retumbo. With the 180gr bullets I was at 3,200 to 3,250FPS.

 

Remington's Power Level ammo using the 180gr sciroccos also shows 3,250FPS which should be an almost identical bullet ballistically to the NBT.

http://www.remington.com/products/ammunition/centerfire/power-level/power-level.aspx

[Guest 300ultramag.]

Not sure what powder charge you are using but asumming 80gr from the books you would be right at 3,000fps give or take 50fps. This looks like it matches up with the numbers you posted.

 

From Shooter for Android

500yds - -42.9 (I think you transposed your numbers)

600yds - -69.4

700yds - -103.7

800yds - -147

 

I would test this at the range for sure as my 300 RUM seems to get a little more speed out of some powders than others compared to what is published. I also think this load looks light a lot of case capacity left so H1000 or Retumbo will probably get you more velocity. My RUM is more consistent with the H1000 but a little less velocity than Retumbo. With the 180gr bullets I was at 3,200 to 3,250FPS.

 

Remington's Power Level ammo using the 180gr sciroccos also shows 3,250FPS which should be an almost identical bullet ballistically to the NBT.

http://www.remington.com/products/ammunition/centerfire/power-level/power-level.aspx

 

 

..

Thanks,

 

I appreciate your help! The Rutumbo 97 gr performed great with my rifle as well! hot load

 

 

again...Thank you for the help.. also what are you zero at.

 

my bullet-drop chart is

3.3 at 100 yds

4.0 at 200

zero at 300

9.3 at 400

24.9 at 500

47.5 at 600

[rcdinaz]

I ran that with 100 yd zero in Shooter.

 

100 yd - 0

200 yd - -2.8

300 yd - -10.5

400 yd - -23.6

 

This is what I show for the load ignoring atmospheric conditions adjustments. Your info looks close you may be about 50fps faster than what I showed at 3,000fps with a 300 yd zero.

[nighthawk]

Sounds like u should have bought a 7mm rem. the bullet doesn't drop ever. Lol

[rcdinaz]

I have both!

 

A 6mm as well, just missing the 6.5 and 338... in time...