Several decades ago, I owned a #1AB Ruger, chambered in 7x57 Mauser. It was a very nice package,
short and handy, and while not the most accurate rifle in my possession, it would maintain moa with
a couple of different loads in the 140/150 grain weights.
Foolishly, I got talked out of it by a friend, who just had to have it. [still has it too] Last year, one showed
up on the EE here, so I jumped all over it. Very nice sample of this relatively rare rifle.
But, as I received it, the accuracy was somewhat disappointing. With several loads, the average worked
out to just shy of 2 moa. Tried several attempts to rectify, but not much seemed to work.
Then, on a suggestion from a #1 owner, I added a shim right at the front of the forestock, and torqued
up the attaching angled screw to 55 lb/in Voila!! that is what this one wanted! I now have sub-moa
groups with 140 ABs, 140 Partitions, and 150 Hunting Ballistic tips. All that remains now is to take it on
a hunt.
Dave.
short and handy, and while not the most accurate rifle in my possession, it would maintain moa with
a couple of different loads in the 140/150 grain weights.
Foolishly, I got talked out of it by a friend, who just had to have it. [still has it too] Last year, one showed
up on the EE here, so I jumped all over it. Very nice sample of this relatively rare rifle.
But, as I received it, the accuracy was somewhat disappointing. With several loads, the average worked
out to just shy of 2 moa. Tried several attempts to rectify, but not much seemed to work.
Then, on a suggestion from a #1 owner, I added a shim right at the front of the forestock, and torqued
up the attaching angled screw to 55 lb/in Voila!! that is what this one wanted! I now have sub-moa
groups with 140 ABs, 140 Partitions, and 150 Hunting Ballistic tips. All that remains now is to take it on
a hunt.
Dave.
