Near prefect conditions all weekend. As mentioned in an earlier post I have done a few modifications to my Ultra. Nothing that the average tinkerer couldn't do. Modifications include:
1.Tubb Final Finish Kit
2.Bed forearm to barrel with as little stress as possible
3.Trigger job
4.Bed scope mount to barrel
5.Remove screws from plastic retainer piece on forearm and let it float (set it in place with forearm off and then install forearm, it cannot fall out after forearm is installed) This is to relieve any remaining pressure that may be in the system. It may be nessisary to take a little material off of this piece in order to float it. Don't take off too much, just enough to remove any pressure points.
6.In my rifle, I loaded 100 gn Ballistic Tips .010 off of the lands, which made an awfully long loaded round that shouldn't be fired in any other gun. The chamber is very long.
The results were very interesting. With a clean barrel, it took four shots for the grouping to settle in (burning oil out). The rifle seems like it wants to shoot into one hole. EVERYTHING IS UNDER 1/2"! The first group measured approximately .330 the next measured .430. The rifle will shoot alot better than I can hold it.
I did put the sandbags under the receiver and not the forearm.
Plans are in the works to do a .243 bull barrel.
More tests will follow............
E