I just ordered a new 7mm-08 and was thinking of what loads to start with, I am not a handloader. I have had good accuracy results with the new Federal loads using the Nosler solid base bullet and also with Hornady Custom loads in other rifles. My question is: Is there a difference in the Solid Base vs the Interlock in regards to terminal performance? At this point, this will be a deer/antelope rifle for my 13 year old son. Is 140 grain slugs the best weight for this cartridge, there are custom loaders around that will make up other bullet weights for me, if there is something better than 140s. I appreciate all insights. Thanks.