I have used both and prefer the 87 grain vmax with a max load of imr 4831. But thats because my gun likes it better than the 75 grainer. works great for rock chucks, not so great on coyotes if you want to keep the pelt - BIG mess.
I've shot a ton of the 87's. For the simple fact that they do have less drift. I use H4350 43 gr. lit by a 210 M and get 3170 fps. They take a jump to the lands very well and have impressive expansion even as far as 700 yards. A very consistent performer in my opinion. Not the most fur friendly, but it puts them down. The pics below are from a 720 yard p dog. I've killed plenty of stuff with these bullets. Cheap and accurate.
AR-10T in .308 & .243 both 24"
700 LA 7 WSM 30" 5R
AR-15 Rock River lower, WOA 26" varmint upper
Savage/ Broughton 23" .308
Think I like the 87 Vmax. I found that 37 grains of IMR4064 is giving me 1 1/4" @400 yards which is about as good as I am. I have not done a chronograph but I pretty much worry about accuracy anyway. I had some good test with the 58 grain but think a heavy bullet is best.
Last June was my first time to get to prairie dog hunt. I used a Gentner 65 Hollow point which shoots well for me. Most of our shooting was from 400 to 600 yards and I really got to see the effects of wind drift. So I want to return with something heavier this year.
Since I am in Louisiana I appreciate any advice. I hunted in the Newcastle, Wy last year.
I shot some 65gn V-Max's earlier this year in my .243 Win and they did fairly well. At 3511fps they gave explosive performance on crows and groundhogs and accuracy ran .4" with the occasional .3". I pushed them with 39.5gn of Varget and CCI BR2's. When they ran out I went to the 75gn Hornady HP and they were even better. I pushed them with 42.0gn of IMR4895 and BR2's and they were skimming along at 3602fps. Accuracy was even better with these pills and they held their own better in the wind. I seemed to be more consistent with the slightly heavier bullets and my hits increased.
As the deer season approached I decided to go an even heavier bullet for both varmints and deer (which is where the .243 fits in). I loaded up the 95gn Nosler Ballistic Tip ahead of 44.0gn of VihtN560 and the BR2's. This load is moving along at 3114fps and printing .2's. Alot better for defying the wind and busting whistle-pigs. I took one the first weekend of November here in Va. at 580yds. Not real long range but I know what bullet/load I'll be shooting come spring! JohnnyK.
"The only thing necessay for the triumph of evil is for good men to do nothing."
I have been using 70 gr pills for my 243. I started using H380 but it is temp sensitive. I also tried Ramshot hunter powder. Good powder did not have any problems. I was using Sierra 70 biltzking but ranout and tried 65 gr V-max and good groups with Hunter powder 3/4 groups at 200yds. Ranout of 65 gr V-max and tried 70 gr Nosler BT. Good bullets but fouled my barrel bad. More than the Sierras or the V-max. I also tried the 87 gr V-max but on coyotes makes a mess. Also called Ramshot and they told me Hunter powder is better suited for heavier bullets in my caliber. They recommended Big Game powder for the lighter bullets i was shooting . Now i am using Winchester 760 powder with the Nosler bullets with Federal lrg rifle primers and i am happy with it. I shoot a stock Savage Model 10 with no alterations.