40x215 CF Ballistic Information
Jul 13, 2015 20:36:43 GMT -5
Post by sabotloader on Jul 13, 2015 20:36:43 GMT -5
After talking to a couple of people that are much more knowing than I am about Ballistic Information, they felt that I should post a corrected Barnes Ballistic sheet information that reflected the actual velocities recorded in the test. They suggested that it should further be qualified that this information was gathered at about 700 ft. above sea level. Also the load was 120 grains of BH-209. Rifle being shot was a Knight 45 cal. Super DISC.
Recorded velocities: shot #1 at the muzzle: 2086 #2 2097 #3 2089; the second chrono @ 100 yards recorded #1 1870 #2 1883 #3 1870
So the average MZ velocity was 2090 fps and the average at 100 yards was 1874 fps. This all works out to the BC for this bullet being 0.330
This information was pushed into the Barnes Calculator and this sheet was produced.
Also for the long range people SShooter requested a sheet with 'extended ranges' be made.
Then lastly I printed a ballistic sheet for a lead conical. This is the conical I use here in Idaho during our ML elk season. You will see that I am shooting 90 grains if T7-3f in a GM-LRH stainless barrel in a Renegade.
This information was posted just for information and comparison.
Recorded velocities: shot #1 at the muzzle: 2086 #2 2097 #3 2089; the second chrono @ 100 yards recorded #1 1870 #2 1883 #3 1870
So the average MZ velocity was 2090 fps and the average at 100 yards was 1874 fps. This all works out to the BC for this bullet being 0.330
This information was pushed into the Barnes Calculator and this sheet was produced.
Also for the long range people SShooter requested a sheet with 'extended ranges' be made.
Then lastly I printed a ballistic sheet for a lead conical. This is the conical I use here in Idaho during our ML elk season. You will see that I am shooting 90 grains if T7-3f in a GM-LRH stainless barrel in a Renegade.
This information was posted just for information and comparison.