I have the exact rifle that you have, and I might add that Howa makes one hell of a rilfe. I absolutely love my Howa .243. That being said, I've shot 95 grain bullets with MOA accuracy up to 500 yards. I don't have any experience with anything heavier than that though. On Bergers website they suggest a 1:9.5 twist for their 95er's. They recommend 1:10 twist for the 87's. These suggestions probably only pertain to their bullets however. Other heavier bullets may shoot great out of them with the 1:10 twist. Before I got into reloading I loved to shoot the 95gr Win Supreme Silver Ballistictip ammo. I always had good accuracy, but poor performance on game. Once I started reloading I bought the Berger VLD 95's originally but never actually loaded a round with one. I sold them and got the 87's per Bergers recomendation. I will tell you that I have only taken the rifle out to 500 yards, but those 87's flat out shoot!!!! 1/2 MOA at all ranges out to 500. Plus they are screaming out of the barrel at about 3200 fps. Any ways, good luck with your rifle and finding a good load. One more thing I will suggest is adjusting your trigger if you haven't already. There is a good video on youtube that explains the whole process. It's very easy and will help with your accuracy. Out of all of the factory triggers I have shot Howa wins hands down. I've been messing with an Accutrigger on my Savage, and I have given up with that piece of junk. I'm ordering a new trigger this weekend for it, but that's another story. :)
