These are what I shoot in my 243 (Winchester Model 70).
Sierra makes great bullets- I shot them exclusively until a few years ago when the ballistic tip bullets cam out and I have gradually been shifting over on my varmint rifle rounds.
The 85 gr. BTHP are very accurate- groundhog and crows out to 400 yds.
I don't remember what the load was off hand- I have very few left and it is time to get a new batch of powder and start over.
I do remember it was IMR 4895- I'd have to look up the grain weight.
When I find an acdurate load, I load up all of my empties and then shoot until they are gone- it's been a while.
I have loaded 75 gr., 85 gr., 90 gr., 100 gr., and 105 gr. in this round and the rifle likes most of them, but I like the 75 and 85 gr. better for their down range devastation.
I never go over 85 gr. anymore- I don't deer hunt with it now.
I only used 100 gr. on deer.
My dad once shot a 10 pt. buck deer with the 75 gr. HP at about 75 yds.- there wasn't anything solid inside that deer when he opened it up.
Didn't exit the otherside, so I wouldn't go to light with a combo round.