I do not see the lighter weight M's being great for bone on a mule deer myself either.
On the other hand, a 7mm 180 grain M I wouldn't be afraid to hunt elk with (Still stay away from heavy bone), and mule deer at about any angle.
I am not suggesting it is the best bullet for elk, but I wouldn't...
It wasn't the wind.
Were you shooting off of a bi-pod in previous range trips, when it was shooting good?
I wouldn't use a slick fabric myself with a bipod, unless it was something like my JOYPOD-X...Which is a completely different cat.
https://sebrests-usa.com/joypod-x/
Shot an antelope with a 223AI XP-100...Probably the same performance level as a 223 rifle with 75 grain A-Max. Bullet did it's job.
A 75M or 80M will work great on deer.
80 M works great on hogs too with my 22 Creed XP pistol...Again, slower MV's than what you would get with a rifle.
88M's...
Started with the 284 Win in the early 90's, center-grip XP-100.
Mine have all been 9T.
I have run from 140's-180's.
The 180's are on my F-Open Rifle (30" barrel).
140's to 168's in 15.75" to 18" barrels.
I had 3 recently, and I am down to 2 right now (Sold a XP-100).
H-4831sc has been the powder...
@FOTIS ,
Beyond some traditional handguns and some 22lr's, I don't use iron sights for any big game.
Even some of my semi-auto pistols and revolvers have some kind of optic on them.
I have taken a few pd's beyond a 100 yards with a S&W 44 Mag, using irons, but that is the exception to the rule
Used to use them-I don't any longer for game.
For me, they were inconsistent in performance...Sometimes opening up and performing well, and sometimes penciling.
At those distances, even a reduced load will have enough impact velocity to perform.
Since she is recoil sensitive I would consider 22 Creed or 22GT, 6 GT or 6mm Creed, and the 25 Creedmoor.
Depends what is minimum caliber where she will be hunting
@Bull67 ,
Welcome!
Sounds like a nice rifle. Pictures?
Barrel contour? 1-9 Twist?
284 Win is one of my favorites.
I love the 284 Win family of cartridges as well, as I have the 6.5-284, 25-284, and 6-284 in fast twist specialty pistols as well.