Nosler Accubonds are nothing more than a Ballistic tip with a thicker jacket, supposedly to prevent just what happened to you. 3,500fps just may require a "lead-free" solid copper bullet out of that .300 Dakota. I have used BarnesX and Barnes TTS bullets for years without the explosive results you experienced. Hornady also has the excellent GMX. Worth a look. JMOView attachment 6996This was the result of a 150gr Accubond fired from a 300 Dakota Mag at a stated 3500fps. This antelope was shot at a little over 400 yards. The butcher said he had never seen so many metal fragments in the meat. So, despite what Nosler says there is a upper velocity limit.
I had the same problem in my 257 Weatherby with ballistic tips, since I started loading the Accubonds I have had excellent results on Antelope up to Elk. The ballistic tips blew a hole in my antelope just like the one in your picture.Had the same problem with Nosler Ballistic Tips in my .257 Wby on antelope. The are now relegated to varmints only.
Oh my!!!!!!!!..View attachment 6996This was the result of a 150gr Accubond fired from a 300 Dakota Mag at a stated 3500fps. This antelope was shot at a little over 400 yards. The butcher said he had never seen so many metal fragments in the meat. So, despite what Nosler says there is a upper velocity limit.
I checked my box from Nosler and also the Nosler web site and could find no such max velocity warning. It seems that they now make a Varmint and big game BT. The Varmint has a thinner jacket.In response to CC's comment about performance of Ballistic Tips in his .257 Weatherby, .25 cal Ballistic Tips are not engineered for that kind of velocity. I reload 115 grain Ballistic Tips in my .25-06 at 3100 fps. The box of Ballistic Tips says the maximum velocity for optimum performance is 3200 fps. I shot an antelope a few weeks ago at 170 yards and I was satisfied with the bullet performance. I think Ballistic Tips are okay (not great) if you keep their impact velocity within bounds.