6BR--How Much Varget is too much....

[dkhunt14]

My Dasher FF load is 31 Gr Varget.

Tod

A fireform load is usually more then you can shoot in a case close to chamber dimensions. It takes energy to move the brass. Matt

 

[Bart B.]

Almost all barrels are lapped looser at the chamber end and tighter at muzzle.

That's contrary to what I've observed and the match barrel makers I checked out.

Broughton says each barrel is hand lapped with a uniform land and groove diameter up to 0.0001" from breech to muzzle

 

[Steve Ladino]

The loads are dependent on barrels, throats, bullet and lot of powder. Usually the longer the throat the more powder it takes. You will have to test and see where you can go. Matt

behind a 105 Gr bullet? I have two other 6BR's that are very happy with a load of 30.0 Gr of Varget. Both get about 2850 fps, even though one has a 26" bbl and the other a 30". I picked up another used rifle in 6BR with very lightly shot 30" Brux barrel last week. I worked it up to 30.0 grains of with no pressure and went to work on seating depth. I found a good spot (.030" off the lands) pretty quickly and I was happy until I got my turn with the club's Labradar.

The loads with 30 Gr of Varget were only doing 2790 fps with ES of triple what I get with my others. The throat on this barrel is very long--about .125". I'm wanting more velocity and I was hoping a little more powder would also help with the ES.

As I'm already above the Berger Book max, I'd like to hear from folks that are running more than 30 grains of Varget. You can PM if you prefer. Thanks much.

As has been stated many variables come into play. My first two 6 BR's shot well with 30 to 30.2 grains of Varget and the 105 VLD / 107 SMK's. One a Krieger the other a Kostighen , anyway my present tube is a Bartlein it never shot to well compared to my other two, UNTILL I decided to keep adding powder ......ended up at 31.3 Varget with the 450's.