You were shooting the wrong bullet in the wrong gun.I bought two of those Remington Model 742's in 30-06 caliber for $ 199.95 each from Widener Firearms here in Augusta back in the late 1970's and based on my experiences, I would not use one of those these days even if they were FREE to me. This gun would never shoot in the same pattern twice as they were all over the place. Thankfully, I later sold both of these and one of them was still unfired in the box. After that experience, I have hunted strictly with Marlin Rifles and that includes calibers of 22, 30-30, and 444 as well.
I even tried the Remington accelerator bullets in the 742 but they were a disaster as well. I will admit that I was much closer to the target one day and decided to shoot a one-gallon jug of water that had the top sealed at the time. It exploded like a bomb had hit it. I think back then that the velocity was supposedly moving around 4,000 fps. That was the only excitement that I ever got from this gun and so I sold both of them soon after.
I still have some of those accelerator bullets mentioned in another thread that I read tonight and mine are in a 30-30 caliber as I looked at them tonight.
Those guns were made for and shot the short rounds the best. I had two in .308 and both shot and cycled well. Both carbines. They should have never made them in 06.