I normally shoot 105 AMAX bullets in my 243 and it has shot under .4 MOA at 100 yards once I found a good load. I recently bought 800 moly coated 105 AMAX bullets off of a member here not knowing they were moly coated. Well I decided to keep them and give them a try rather than send them back. The load I shoot with non moly 105 AMAX is 45.5 grains of Vihtavuori N160, Remington brass, CCI BR2 primers. I seat them .010" off the lands.
With the moly bullets I started at 45.2 gr and worked up to 46.7 gr (in .3gr increments) where I started seeing pressure. I tried seating them .010", .020" and even stuck them into the lands. Nothing I have tried has yielded anything better than 1 MOA groups at 100 yards.
Everything I have read or been told is that moly bullets reduce pressure so you will have to increase your powder charge to make up for it. At least that's what I gathered. Does anyone think it would be any use trying to work down to see if accuracy improves? Or try a different powder? I'm all out of ideas and this is my first experience with moly coated bullets.
The rifle is a Remington 700, trued action, 243Win match chamber, 26" Krieger gain twist barrel from 1:8.75 to 8.3. I mainly use it to shoot F class.
Thanks in advance for any and all replies.
With the moly bullets I started at 45.2 gr and worked up to 46.7 gr (in .3gr increments) where I started seeing pressure. I tried seating them .010", .020" and even stuck them into the lands. Nothing I have tried has yielded anything better than 1 MOA groups at 100 yards.
Everything I have read or been told is that moly bullets reduce pressure so you will have to increase your powder charge to make up for it. At least that's what I gathered. Does anyone think it would be any use trying to work down to see if accuracy improves? Or try a different powder? I'm all out of ideas and this is my first experience with moly coated bullets.
The rifle is a Remington 700, trued action, 243Win match chamber, 26" Krieger gain twist barrel from 1:8.75 to 8.3. I mainly use it to shoot F class.
Thanks in advance for any and all replies.