was out shooting my omega today. was using 100gr.777 2f and a 250gr. shockwave blk. sabot. was getting great group out at 150 about 1-2 inches low 3 inches or less overall group. thats when i decided to go out to 200 thats where things got hairy i was using my lrd duplex reticle in my leupold 4-12x40 vx 2. and if i put my bottom dot on the top of the target i would hit just at the bottom (8 inch shootnsee) by my caculations i think i was getting like 14-16 inches of drop from 150 -200 . is that about right??? i think i will have to up my load just wasnt shure on how much more loose 777 this gun will take..
I don't know if this will help, but here are my numbers for my Omega using 110 gr T7 2f, 300 gr Nosler Partition. Zero 153 yds.
Load Data
~~~~~~~~~
Name: .451 Cal, Nosler Partition PP, 300 grn
Ballistic Coeff: 0.199
Bullet Weight: 300
Velocity: 1914
Target Distance: 250
Scope Height: 1.500
Temperature: 70
Altitude: 500
Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA Drop Max Y 10mph Wind Deflect
0 yds -1.50 in 1914 fps 2440 fpe 0.000 sec 0.00 in -1.50 in 0.00 in
25 yds 0.67 in 1825 fps 2219 fpe 0.040 sec 0.31 in -0.52 in 0.17 in
50 yds 2.18 in 1740 fps 2017 fpe 0.083 sec 1.28 in -0.27 in 0.74 in
75 yds 2.95 in 1658 fps 1831 fpe 0.127 sec 2.97 in 0.19 in 1.68 in
100 yds 2.95 in 1579 fps 1660 fpe 0.174 sec 5.45 in 0.86 in 2.95 in
125 yds 2.12 in 1502 fps 1502 fpe 0.222 sec 8.75 in 1.79 in 4.52 in
150 yds 0.29 in 1430 fps 1362 fpe 0.273 sec 13.06 in 3.02 in 6.63 in
175 yds -2.63 in 1363 fps 1237 fpe 0.327 sec 18.46 in 4.59 in 9.24 in
200 yds -6.73 in 1301 fps 1127 fpe 0.383 sec 25.03 in 6.54 in 12.28 in
225 yds -12.06 in 1243 fps 1028 fpe 0.442 sec 32.84 in 8.90 in 15.74 in
250 yds -18.84 in 1191 fps 944 fpe 0.504 sec 42.10 in 11.74 in 19.71 in
275 yds -27.16 in 1144 fps 872 fpe 0.568 sec 52.89 in 15.08 in 24.12 in
300 yds -37.14 in 1104 fps 812 fpe 0.635 sec 65.35 in 18.99 in 28.97 in
__________________
Work is the evil one must endure for life's pleasure's.
Here is a chart for one of the loads I use. 100gr of 777 2F and a 250 Shockwave. This is set to zero at 100 yards and 500 foot elevation.
Name: .45 Cal, TC Shockwave, 250 grn
Ballistic Coeff: 0.210
Bullet Weight: 250
Velocity: 1780
Target Distance: 100
Scope Height: 1.500
Temperature: 70
Altitude: 500
Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA Drop Max Y 10mph Wind Deflect
0 yds -1.50 in 1780 fps 1759 fpe 0.000 sec 0.00 in -1.50 in -0.00 in
25 yds 0.07 in 1701 fps 1606 fpe 0.044 sec 0.36 in -0.51 in 0.24 in
50 yds 0.89 in 1624 fps 1464 fpe 0.089 sec 1.48 in -0.22 in 0.82 in
75 yds 0.89 in 1550 fps 1333 fpe 0.136 sec 3.41 in 0.30 in 1.69 in
100 yds 0.00 in 1479 fps 1214 fpe 0.185 sec 6.23 in 1.07 in 2.94 in
125 yds -1.89 in 1412 fps 1106 fpe 0.237 sec 10.05 in 2.13 in 4.64 in
150 yds -4.90 in 1349 fps 1011 fpe 0.292 sec 15.00 in 3.53 in 6.83 in
175 yds -9.10 in 1291 fps 925 fpe 0.349 sec 21.13 in 5.31 in 9.44 in
200 yds -14.56 in 1237 fps 849 fpe 0.408 sec 28.53 in 7.48 in 12.44 in
225 yds -21.49 in 1188 fps 783 fpe 0.470 sec 37.38 in 10.12 in 15.93 in
250 yds -29.94 in 1144 fps 727 fpe 0.534 sec 47.77 in 13.26 in 19.83 in
275 yds -40.06 in 1106 fps 679 fpe 0.601 sec 59.83 in 16.94 in 24.15 in
300 yds -51.96 in 1072 fps 638 fpe 0.670 sec 73.65 in 21.19 in 28.87 in
It only shows about 10" drop between 150 and 200.
__________________
David
Only one man in a thousand is a leader of men -- the other 999 follow women.
Groucho Marx
Here is a chart for one of the loads I use. 100gr of 777 2F and a 250 Shockwave. This is set to zero at 100 yards and 500 foot elevation.
Name: .45 Cal, TC Shockwave, 250 grn
Ballistic Coeff: 0.210
Bullet Weight: 250
Velocity: 1780
Target Distance: 100
Scope Height: 1.500
Temperature: 70
Altitude: 500
Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA Drop Max Y 10mph Wind Deflect
0 yds -1.50 in 1780 fps 1759 fpe 0.000 sec 0.00 in -1.50 in -0.00 in
25 yds 0.07 in 1701 fps 1606 fpe 0.044 sec 0.36 in -0.51 in 0.24 in
50 yds 0.89 in 1624 fps 1464 fpe 0.089 sec 1.48 in -0.22 in 0.82 in
75 yds 0.89 in 1550 fps 1333 fpe 0.136 sec 3.41 in 0.30 in 1.69 in
100 yds 0.00 in 1479 fps 1214 fpe 0.185 sec 6.23 in 1.07 in 2.94 in
125 yds -1.89 in 1412 fps 1106 fpe 0.237 sec 10.05 in 2.13 in 4.64 in
150 yds -4.90 in 1349 fps 1011 fpe 0.292 sec 15.00 in 3.53 in 6.83 in
175 yds -9.10 in 1291 fps 925 fpe 0.349 sec 21.13 in 5.31 in 9.44 in
200 yds -14.56 in 1237 fps 849 fpe 0.408 sec 28.53 in 7.48 in 12.44 in
225 yds -21.49 in 1188 fps 783 fpe 0.470 sec 37.38 in 10.12 in 15.93 in
250 yds -29.94 in 1144 fps 727 fpe 0.534 sec 47.77 in 13.26 in 19.83 in
275 yds -40.06 in 1106 fps 679 fpe 0.601 sec 59.83 in 16.94 in 24.15 in
300 yds -51.96 in 1072 fps 638 fpe 0.670 sec 73.65 in 21.19 in 28.87 in
It only shows about 10" drop between 150 and 200.
Really flat shooting out to 100 yards, never realized that it dropped off the table so fast. Chap Gleason
__________________
Chapman Gleason
Purcellville Va
http://www.the-gleasons.com
thanks dmurphy . i had the chance to get the tape measure out last night and i am right there with you.. just never would have thought it would have dropped that much in 50 yards. guess there really is no sustitute for experience..
Most of the loads I shoot I have checked out to 200 yards at the range. So far the ballistic charts I run are very close to the actual results, usually within an inch or less. Due to the cross checking I have done I feel relatively confident in the ballistic tables I use. I still prefer to shoot at the different ranges to verify them. I also find that the 300gr bullets seem to be the better choice for the longer ranges some want to shoot due to the retained energy of the heavier bullet. The trajectory is not that much lower but the energy stays longer for a better terminal result. Of course other peoples oppinion will differ but that is my 2 cents.
__________________
David
Only one man in a thousand is a leader of men -- the other 999 follow women.
Groucho Marx
I had chrony'd mine at the muzzle and 100 yds, velocities were accurate.. I've also shot to 200 yds and the charts are accurate at least that range. Although I must admit that my grouping at 200 was about 7 inches.[:@]
__________________
Work is the evil one must endure for life's pleasure's.
It seems to me that the further you get out there the larger the aiming error becomes. Even with a scope it gets harder to hold on a specific point as well as at shorter ranges. A fine crosshair helps you see the error better but it's still hard to hold on the point you want. Any slight movement will be amplified by the distance. This is one of the reasons I sight in at longer distances (100 yards or more) so I can fine tune the sight in for the load. If I can hit at that distance then closer will be fine. The amount of aiming error the distance imparts is added to the accuracy of the load and thus produces larger groups the further out shoot. A load that will shoot 1" at 100 yards should theoretically shoot a 2" group at 200 but most of the time it will be bigger, sometimes a lot bigger. The best group I've ever shot at 200 with a muzzleloader is a little under 3". I've shot several loads that are cappable of sub 1" groups at 100 that spread to 4" at 200. There are all kinds of things that can affect the group when you stretch the range, aiming error, wind, heart beat, etc. Practice is the best way to work on the one's you can control.
__________________
David
Only one man in a thousand is a leader of men -- the other 999 follow women.
Groucho Marx
Most of the loads I shoot I have checked out to 200 yards at the range. So far the ballistic charts I run are very close to the actual results, usually within an inch or less. Due to the cross checking I have done I feel relatively confident in the ballistic tables I use. I still prefer to shoot at the different ranges to verify them. I also find that the 300gr bullets seem to be the better choice for the longer ranges some want to shoot due to the retained energy of the heavier bullet. The trajectory is not that much lower but the energy stays longer for a better terminal result. Of course other peoples oppinion will differ but that is my 2 cents.
Agree with you 100% on the 300g bullets, they have higher BC and higher SD. For example the SW has .210 for the 250g but for the 300 goes to .250, in effect you get an extra 25 yards, but the retained energy is there with the bigger lead. Sorta same theoryas "big lead going slow leaves big hole", that the White MLer guys do. Chap Gleason
__________________
Chapman Gleason
Purcellville Va
http://www.the-gleasons.com
how much drop between 150 and 200 yards
