Zeke
Long Time Member
- Messages
- 10,604
440 (or whatever he's now going by) was correct about the 150gr LR AB bullets. I thought since "I" know so much they would work for me. LOL. They are tough to get them to shoot accurately. Period.
I've tried up and down the powder scale, from 10 to 50 thousandths off the lands and it seems like it's not going to shoot any better than 1.25-1.5" groups for me.
Since this is a new Lilja barrel, I didn't know what the gun would do and hoped that the poor groups could be attributed to the bullets.
I also thought it might be the powder since I went with the new IMR7977 for temperature insensitive reasons and I'm the only guy on the planet who I know who has used it. To test this thought,
The switch was made to the 150gr Ballistic tips (not my first choice but I've killed 3 or 4 sheep with them before using cartridges ranging from 270, 280, 300) and the groups immediately shrank to less than half!!! The best news is, the higher I went with my powder charge (within safe limits yet 2.3 grains above book max), the better they shot! The last couples were .43" and .4"
Now, I'm sure that with way more tinkering, the 150 LR AB's could be made to work but it might take something as radical as a new barrel twist and I'm not willing to do that. My 9 twist seems to work fine with the BT.
I hope he doesn't let it go to his head but he was certainly correct.....again.
Zeke
I've tried up and down the powder scale, from 10 to 50 thousandths off the lands and it seems like it's not going to shoot any better than 1.25-1.5" groups for me.
Since this is a new Lilja barrel, I didn't know what the gun would do and hoped that the poor groups could be attributed to the bullets.
I also thought it might be the powder since I went with the new IMR7977 for temperature insensitive reasons and I'm the only guy on the planet who I know who has used it. To test this thought,
The switch was made to the 150gr Ballistic tips (not my first choice but I've killed 3 or 4 sheep with them before using cartridges ranging from 270, 280, 300) and the groups immediately shrank to less than half!!! The best news is, the higher I went with my powder charge (within safe limits yet 2.3 grains above book max), the better they shot! The last couples were .43" and .4"
Now, I'm sure that with way more tinkering, the 150 LR AB's could be made to work but it might take something as radical as a new barrel twist and I'm not willing to do that. My 9 twist seems to work fine with the BT.
I hope he doesn't let it go to his head but he was certainly correct.....again.
Zeke