Shot 175Yards today with Omega
#1
Thread Starter
Join Date: Jul 2006
Location:
Posts: 5,180
Shot 175Yards today with Omega
Found a great place to do 175 and 200 yard shooting. I set my target out there and marked the 175yrd spot and set up my stuff and shot off of my shooting sticks. 2 shots was more than enough to know that the big 405 Powerbelt is dropping pretty good at that distance and the 80 grain charge i use.
They grouped excellent. Right at 2 1/2" @ 175 and using shooting sticks!
I plan on trying 2 more shots at 175 with winchester 777 primers tomorrow. Today i was using remington kleanbores.
Drop, #1 shot was exactly at 13" low @ 175yrd.
POA was the 6 o'clock spot on the small circle. (big circle is for 100 yard Mountain rifle shooting)
So now my question. 3 clicks up to move it up 4" or leave it where its at? An elk has a huge side so 13" may seem like a lot but when the elk is in your scope, 13" to be is doable.
4" high @ 100 puts me 4" high at 50 and 75 yards. Its weird how that works out but its right on the money at the shorter ranges.
They grouped excellent. Right at 2 1/2" @ 175 and using shooting sticks!
I plan on trying 2 more shots at 175 with winchester 777 primers tomorrow. Today i was using remington kleanbores.
Drop, #1 shot was exactly at 13" low @ 175yrd.
POA was the 6 o'clock spot on the small circle. (big circle is for 100 yard Mountain rifle shooting)
So now my question. 3 clicks up to move it up 4" or leave it where its at? An elk has a huge side so 13" may seem like a lot but when the elk is in your scope, 13" to be is doable.
4" high @ 100 puts me 4" high at 50 and 75 yards. Its weird how that works out but its right on the money at the shorter ranges.
#6
Nontypical Buck
Join Date: Dec 2005
Location:
Posts: 3,246
RE: Shot 175Yards today with Omega
http://www.powerbeltbullets.com/docs/PBB28inchballistics.pdf has this for thedrop with 150 yard zero using 100g of 777, you were using 80:
If you know the MV of your load we can drop it into here:
http://www.sav10ml.com/pages/load_data/traj_basic_dat.html
According to this chart you with 100g of 77 you need to be 5 1/4 inches high at 75 yards to get the drop in this chart. I am gonna say with 80g you bullethas the drop of 200 yards at the 175 yard point. So according to the chart you should have been-11.5 inches low at 175, which was about what you were.Anyway if you have a chrony get the ML and we can figure it outpretty close, range tests like your doing it the best. shoot 3 shots.
Chap
If you know the MV of your load we can drop it into here:
http://www.sav10ml.com/pages/load_data/traj_basic_dat.html
According to this chart you with 100g of 77 you need to be 5 1/4 inches high at 75 yards to get the drop in this chart. I am gonna say with 80g you bullethas the drop of 200 yards at the 175 yard point. So according to the chart you should have been-11.5 inches low at 175, which was about what you were.Anyway if you have a chrony get the ML and we can figure it outpretty close, range tests like your doing it the best. shoot 3 shots.
Chap
#7
Join Date: May 2008
Location:
Posts: 499
RE: Shot 175Yards today with Omega
ORIGINAL: frontier gander
2 shots was more than enough to know that the big 405 Powerbelt is dropping pretty good at that distance and the 80 grain charge i use.
2 shots was more than enough to know that the big 405 Powerbelt is dropping pretty good at that distance and the 80 grain charge i use.
More propellant, less drop..............
#8
RE: Shot 175Yards today with Omega
Chap - I would suspect that a 405 grain bullet with only 80 grains of powder might not make that kind of velocity. This is very interesting seeing these kind of results.
#10
Thread Starter
Join Date: Jul 2006
Location:
Posts: 5,180
RE: Shot 175Yards today with Omega
ORIGINAL: Rifle Loony
If a couple of inches of drop is a concern, why only 80 grain charges?
More propellant, less drop..............
ORIGINAL: frontier gander
2 shots was more than enough to know that the big 405 Powerbelt is dropping pretty good at that distance and the 80 grain charge i use.
2 shots was more than enough to know that the big 405 Powerbelt is dropping pretty good at that distance and the 80 grain charge i use.
More propellant, less drop..............