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Post by fairchaser on Jan 29, 2015 14:04:54 GMT -5
I recently bought a conversion smokeless. Its a CVA Apex 45-70 conversion topped with a Nikon BDC scope. My question is how to set up the BDC at the 100 yard range before I go out to longer distances. I assume I can build a ballistics chart if I have the speeds and BC. What do I do from here? I am shooting a duplex 10/50 IMR SR4759/H4198 with a 200 g SST and LBH sabots at 2625FPS.
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Post by rangeball on Jan 29, 2015 14:08:36 GMT -5
You can get close with a ballistics calculator such as JBM ballistics, but it's always best to verify it in real world conditions.
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Post by hankinsrfls on Jan 29, 2015 15:45:11 GMT -5
Sight it in dead on at 100 yards,, then verify the drops by actual shooting... Jeff Hankins...
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Post by BuckDoeHunter on Jan 29, 2015 20:12:10 GMT -5
If sighted in at 100yds with the BDC300, 1st circle 147yds, 2nd 212, 3rd 314, 4th 412, bottom post 494
Nikon SpotOn, good program and its free.
BDC250- 1st and 2nd same, 3rd 290, 4th 355, bottom post 447
I would think it would get you close but only one way to find out, post up your results.
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Post by mike243 on Jan 29, 2015 20:17:37 GMT -5
you will need to know your speed to get a good fix on the spot on app or shoot a bunch and figure the drop to get the speed
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Deleted Member
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Post by Deleted on Jan 29, 2015 20:30:59 GMT -5
you will need to know your speed to get a good fix on the spot on app or shoot a bunch and figure the drop to get the speed He mentioned that he's clocking his speed at 2625fps..... |
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Post by jims on Jan 29, 2015 20:54:02 GMT -5
Bestill had some actual experience with a Nikon Monarch at a bit lower speeds. You might contact him for some ideas.
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Post by tar12 on Jan 30, 2015 6:06:38 GMT -5
I recently bought a conversion smokeless. Its a CVA Apex 45-70 conversion topped with a Nikon BDC scope. My question is how to set up the BDC at the 100 yard range before I go out to longer distances. I assume I can build a ballistics chart if I have the speeds and BC. What do I do from here? I am shooting a duplex 10/50 IMR SR4759/H4198 with a 200 g SST and LBH sabots at 2625FPS. There are no short cuts with Smokeless guns. Get out there and shoot it. You will learn a lot about your load and build confidence in the process. |
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Post by fairchaser on Jan 30, 2015 9:34:45 GMT -5
Thanks for the help. I plan on getting out there at long ranges. I just wanted to have some idea where the circles were before I letem fly.
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Post by bigm00se on Jan 30, 2015 10:35:06 GMT -5
Them circles suck for precise long range shots. IMO
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Post by fairchaser on Jan 30, 2015 10:56:59 GMT -5
Them circles suck for precise long range shots. IMO I agree Bigmoose but for a hunting gun, its what I got. |
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Post by rambler on Jan 30, 2015 11:23:16 GMT -5
Have you considered using sabotless bullets?
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