Who to do N Frame caliber conversion?

[NE450No2]

Doug, all I can say is the 6 1/2", and the 6" mod 25-2's I have shot have been VERY accurate to 50 yards.
When I qualified with them I always shot 100%.

 

[Doug M.]

With FMJ, or including lead? I did some checking again and it may be the rifling depth/cut that's the issue.