Re: new to reloading
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: noack920</div><div class="ubbcode-body">I am new to reloading and was trying to measure the lands of my rifle. It is a 721 300H&H. I used the cleaning rod and marked it and measured the marks and got 3.724 but all the reloading books say the col 3.600. how do i know if my bullet is in the rifleing. I loaded an empty case and bullet to 3.700 and the bolt shut fine and wasnt hard to close. any ideas would be helpful. </div></div>
Noack,
Winchester did not develop the 300 H&H, but they did standardize the chambering here in the US. Winchester Model 70's magnum mag box is 3.60". That's why load books say 3.6" as MAX COAL for the 300 H&H. Just so there data will work in the popular Win Model 70's.
However, Remington's magnum mag box in the 721 is 3.70". That will allow you set the bullet out further, gain some room the case, and maybe use some heavier charges safely.
Bob