Any you handloaders out there for the 30-30 load ever check seating depth when doing test firings for your tightest groups. Have searched every where on here and find no posts about this. Cannot believe no one has brought up this subject and am just about ready to handload for this round and wondering how you guys find distance to lands...for a bolt many ways to do but for a lever want to know how some of you do this. For my bolt guns, I just take a fired case from my gun and insert a bullet and bite down on it ever so lite...and carefully insert in the chamber with the case inserted by the bolt closing and ever so carefully pull the bolt back and take the case out of the bolt and..if all goes real slow and careful, you will see that the bullet has been pushed back into the case and you can take your readings as to how long round is now...do this several times to get a good reading. Also, measure your case before you insert into chamber and you will see when taking case out how far it has been pushed back in by the bullet as it is touched by the lands. Now, with the Marlin lever, can the lever be taken out and the ejector be removed so as bolt can be inserted with the case and bullet to get this reading. Have just bought a 30-30 and know that seating depth has to have an effect on accuracy, just as a bolt gun.