Most hunters rely on factory ammo for their rifles. No doubt some stick with the same make and type of round but I would guess

[Kody ⭐⭐⭐ Find all posts View Profile Close Kody]

Most hunters rely on factory ammo for their rifles. No doubt some stick with the same make and type of round but I would guess that an equal number of hunters vary their choice based on price and availability. Different bullets regardless of being the same weight, similar design and the same powder charge will have a different point of impact from the same firearm. When more than one of those variable changes you can expect even more variations down range. So??? The average guy puts down $20+ for twenty 30-06 rounds in a make he has never tried. Should he sight in his rifle to check this new load or is it worth the trouble and expense?

[tlc361 ⭐ Find all posts View Profile Close tlc361]

Re-zero your rifle with any change in ammo, be it bullet weight, bullet type or brand change. You can even find Point of Aim (POA) changes from different lot numbers of the same factory load.

I tend to reload and test combination to find what shoots best from each of my rifles, then stick to reloading every round the same for that individual rifle. This gives me a better chance of having a reliable round hitting the same POA each time.