Originally Posted by Buck44
So do I break the barrel in on just any cheap ammo? I would like to have some idea what the gun is doing durring this period but I hate to waist expensive ammo to do that. Also is there any way to buy ammo off the shelf and expect anything good or do I just need to plan on hand loading to begin with? My Weatherby wouldn't group at all with factory ammo but I later learned that I was trying to shoot 150-170 grain bullets and because of the barrel twist it needed 200-250. It ended up doing the best on 220 but I have learned soooo much reading since then i want to go back and do it all over again.
Is there a rule of thumb on barrel twist/ bullet weight? How do I know were to start?
There is no quote on quote rule of thumb on twist rate. You should however plan to use a twist rate that will handle the loads you plan on shooting. If you have a desire to shoot to 1000yd with a 223, then you will need a 1:8 minimum or 1:7 to shoot the heavier VLD bullets. For that distance no less than 75grn bullet should be used. There is some factory ammo that will offer these style of bullets. You should break the barrel in with bullets and loads you plan to shoot. For the first 15 or 20, cheap stuff is fine, but after that, if you plan to hand load this would be the time to start using them to see what kind of consistency you are going to get.
The off the shelf stuff is not going to be that inexpensive. You should try stuff like Hornady Match Superformance, Federal Gold Match, Black Hills, Cor-Bon, and the like. These will give you the best performance. There is some military grade ammo designed to be accurate, just not sure of the nomenclature.
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