300 Win Mag Problem....? HELP!!!

[FURMAN]

I am confused about how you would expect the different barrels to shoot the load developed for the first barrel. Do you have chrono data from before and after the issue started? Every magnum I have owned sped up around 100 rounds and I had to drop powder charge down to get back to the original speed to get back to the accuracy node. I saw no mention of you making any changes to the load. The first thing I would do if you have not already is drop the powder charge and work back up to see if you can find the node again.

 

[daniel brothers]

i GOT IT.... so far so good. After installing the 4 th barrel... and a plastic stock, it still didn't shoot good with 150 gr bullets....so... I loaded up some 180 SST bullets with H4831SC, at 68.0, 69,0 and 70,0 grs of powder... and they started grouping. The 69.0 grouped consistantly around 1/2"... which is AWESOME... now i need to replace the laminated pretty stock to see if it still groups. Thanks Guys for your helpful suggestions.


https://photos.google.com/u/1/album...ipM6yh2w1YqxAQIrVfmwYqIJjMQqozGkAAKz4OBF

 

[daniel brothers]

I just shot it with the laminated stock and it shoots good now... so now I'm not sure if the whole problem was just the reloads and the barrel... it doesn't matter now since it shoots 3/4 " at the moment... and it's going back to my buddy.... Praise the Lord....LOL. thanks Guys for all your help. May Jesus Bless You All.... Dan