Trajectory Question?

Salmon · Jan 17, 2015

Hello, Was wondering if someone more knowledgeable then myself would help me out. I load a 300 WM with 70gr of IMR4350 and a 180 accubond bullet. My old Speer manual lists it at 2950fps. If sighted in at 100yds 2" high and 100yds 3" high what would be the drop at 300,350,400,450,500 yds for each. Thanks in advance for any help.

Apexmtnman · Jan 18, 2015

Here ya go, punch it in your self.

http://www.jbmballistics.com/cgi-bin/jbmtraj_simp-5.1.cgi

Salmon · Jan 18, 2015

Thank you very much!!!

Zeke · Jan 20, 2015

Punch in your data and you'll soon see why you should sight it in at 3" high at 100 yards! Much better PBR.
Just my 2 cents
Zeke

Pre64 · Jan 20, 2015

You won't know what that load is doing until you put it through a chronograph. Then you get real numbers.

Zeke · Jan 21, 2015

>You won't know what that load
>is doing until you put
>it through a chronograph.
>Then you get real numbers.
>

Pre64 is totally correct. You need real velocity numbers to enter the data...... or do like we did in the OLD days. Actually shoot your rifle at all ranges and see what it REALLY does.

Zeke

Califelkslayer · Feb 27, 2015

Ditto Zeke's comment.

Nothing builds more confidence in your gun than shooting it.

REDDOG · Mar 1, 2015

>>You won't know what that load
>>is doing until you put
>>it through a chronograph.
>>Then you get real numbers.
>>
>
>Pre64 is totally correct. You need
>real velocity numbers to enter
>the data...... or do like
>we did in the OLD
>days. Actually shoot your rifle
>at all ranges and see
>what it REALLY does.
>
>Zeke

Not old days..still just as relevant today as you probly know..NOTHING trumps what the paper is telling you..chrono will get you in the ballpark tho.