I have used them all except the noslers.
this is my opinion only but it is from my own experiences and others close to me.
I like sierra's and it seems their quality control is very nice (take the tour at the factory sometime)
As far as the 69's and 77's they work as fine as you can hold.
I have thousands of the moly 75 hornady's sitting at home and they work fine but really have not played with them much except as team loads for ntit practice and match. Did use them in a off hand match and was happy.
Do plan on trying them out more this next year.
Berger 73's are very very nice but the cost sets me back but they hammer better groups in the one rifle I tested them in back in sept in a match.
Do plan on buying a few thousand of them to try out this coming year and more than likely they will become my main load at 200 and 300 for serious matches.
Now I will try the heavier one's like the 75 amax, sierra 80's and the berger 75 vld's.
I have alot of friends that love the 75 amax and my team captains try to get me to shoot them instead of the 80 sierra's.
I agree that I could push the 75 amax faster and all that speed thing over wind drift that goes with it but when the 75's out shoot the sierra 80's in my rifles I will switch. when my coach is telling me to switch and then using me as the first shooter to get the wind down he does not complain about them then. I do know then shoot flatter cause of the speed in my rifles but I get better groups with the 80's.
As alot of folks tell me you get a reliable result with 80's
Now some of us are playing with others rounds like the 90 jlk's and with the ar15 at 800,900 and 1,000 I am leaning toward the use of berger 75 vld's.
Building a new upper for just long range for this next year so will get to try some things out. will see if the bergers will shoot out of my 1-6.5 barrel and if they will not will try one of my other rifles to see which is better a 90 jlk with a 1-6.5 twist or the 75 berger vld's in a 1-8.
I think it will be the bergers and the speed on them as at 800 and beyound I do want the faster bullet as what if any I lose in acurracy I will make up in less clicks between shots. But I will still have to wait to see as it did not make me switch at 600 but the 75vld's might work out at 600 also.
Dang hate to spend the extra bucks but at this point I am willing to do it.
n540, berger 73, rem. 7 1/2 primer hammers and then add a lapua case and it might get expensive but trying not to use the lapua's.
Honestly, I haven't tried the Hornadys, but I have used many Noslers and Sierras. Quite frankly, my scores are the same either way. So I buy whatever is on sale or available when I need lead. Just don't mix Noslers and Sierras in the same batch, but that should go without saying. (They do have slightly different sight settings IME.) Loads that are safe for XX-grain Sierras are normally safe for Noslers of same weight. Hornadys may vary, I don't know.
