Range Report 140 eld m g7 b.c. ?

[demolitionman]

I've switched from .264 130gr Bergers to these 140gr ELD M bullets. My Creed is spitting them out about 2744fps. I searched all over for a G7 BC, Hornady lists multiple BC's for this bullet. Then I read another thread recently somewhere that this 140 ELD M has changed BC. Can anyone get me the G7 BC that seems to be lining up well with my muzzle velocity? Have a match tommorow and am hoping to get as close as I can with my dope until I can true my own data with this bullet. Thanks alot.

 

[cruze5]

hornady reloading manual states .3**

 

[Steel head]

In my case a 140 eld-m at 2710 fps .314 is working well for me.

 

[demolitionman]

Ok thanks guys. I got to true my dope up after a match Sunday and the Bc that is working for me now is .310 @ 2740fps for this bullet.

not so odd though; after lunch my shots impacted about .2mills high i believe from the heat warming my gun and cartridge box. Soon as i kept focused on keeping my bullet box in shade my impacts returned to normal.

 

[Rob01]

Here is the link to the multiple bands of BC with velocity. For shooting long range using an average of the three if you have to put a single number in works well.
https://www.hornady.com/support/ballistic-coefficient

You can also try the Hornady 4DOF ballistic program which has all factored in for the ELDs.
https://www.hornady.com/team-hornady/ballistic-calculators/#!/4dof

 

[demolitionman]

Here is the link to the multiple bands of BC with velocity. For shooting long range using an average of the three if you have to put a single number in works well.
https://www.hornady.com/support/ballistic-coefficient

You can also try the Hornady 4DOF ballistic program which has all factored in for the ELDs.
https://www.hornady.com/team-hornady/ballistic-calculators/#!/4dof

Thanks Rob. The 4DOF program i had not seen before. Always nice to have tools when one needs them.

 

[Rob01]

No problem. They will be coming out with a 4dof for iPhones and other mobile devices in the near future. I was told it will be free as well.

 

[Max_win]

0.305 G7 best for Blaser R8 8 twist rate (23.8 ") , 2830 fps.

works up to 1300 y.

 

[pell1203]

Note that this is almost a 3 year old thread.