Ladder results
- Thread starter Bear24
- Start date
Re: Ladder results
Where did 44.3gr fall in as far as numbered shots on the ladder? Vertically, 5, 6, 7 seem close and was just curious what their charge weight was. Same question on #'s 10 and 11.
Where did 44.3gr fall in as far as numbered shots on the ladder? Vertically, 5, 6, 7 seem close and was just curious what their charge weight was. Same question on #'s 10 and 11.
Re: Ladder results
groups
5 shots
43.5g, avg mv: 2654, ES 39 SD 15
3 shots
43.8g, avg mv: 2686, ES 13 SD 7
5 shots
44g, avg mv: 2720, ES 62 SD 20
3shots
44.3g, avg mv: 2690, ES 13 SD 5
5 shots
44.5g, avg mv: 2751, ES 58 SD 21
3 shots
44.7g, avg mv: 2734, ES 12 SD 6
groups
5 shots
43.5g, avg mv: 2654, ES 39 SD 15
3 shots
43.8g, avg mv: 2686, ES 13 SD 7
5 shots
44g, avg mv: 2720, ES 62 SD 20
3shots
44.3g, avg mv: 2690, ES 13 SD 5
5 shots
44.5g, avg mv: 2751, ES 58 SD 21
3 shots
44.7g, avg mv: 2734, ES 12 SD 6
Re: Ladder results
Need to go farther, for the ladder, 200yds is to short. I cannot read that properly.
You might be better off doing an OCW test (kinda what you did), if you don't have the range to get 300-500yds
Be more consistent with the groups, always shoot the same # in the group (5 is the norm now)
Thant said the 44-44.7 is where you need to be.
T
Need to go farther, for the ladder, 200yds is to short. I cannot read that properly.
You might be better off doing an OCW test (kinda what you did), if you don't have the range to get 300-500yds
Be more consistent with the groups, always shoot the same # in the group (5 is the norm now)
Thant said the 44-44.7 is where you need to be.
T
Re: Ladder results
I agree with Rover31. I do mine at 450 or 500 yards. But load in between 6 and 7 look like it might be a Node with the way your MV and target look. I call a redo. Do the test a couple times just to see if it repeats same data.
I agree with Rover31. I do mine at 450 or 500 yards. But load in between 6 and 7 look like it might be a Node with the way your MV and target look. I call a redo. Do the test a couple times just to see if it repeats same data.
Re: Ladder results
Thanks guys, these were the first rifle load I have ever done and it's all a fun learning experience for me.
So next time out maybe do a couple ladders with:
43.8
44.1
44.4
44.7
45
Is that enough charges to get good results? Or sould I go in .2 increments?
Thanks guys, these were the first rifle load I have ever done and it's all a fun learning experience for me.
So next time out maybe do a couple ladders with:
43.8
44.1
44.4
44.7
45
Is that enough charges to get good results? Or sould I go in .2 increments?
Re: Ladder results
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bear24</div><div class="ubbcode-body">Can you guys with some experience decipher this ladder results? Overall great time at the range today!
Gun was FN SPR 308win @200yards
</div></div>
To my knowledge you go by the three closest bullets vertically. It looks like your best group is 5, 6, and 7. Now you work in between load 5 and 7 to narrow it down. Maybe by .2 grain increments and a further distance if you can.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bear24</div><div class="ubbcode-body">Can you guys with some experience decipher this ladder results? Overall great time at the range today!
Gun was FN SPR 308win @200yards
</div></div>
To my knowledge you go by the three closest bullets vertically. It looks like your best group is 5, 6, and 7. Now you work in between load 5 and 7 to narrow it down. Maybe by .2 grain increments and a further distance if you can.
Re: Ladder results
I would drop the low and the high here.
you could do the .2 or shoot a group of 5 with the 3 charge weights left...
I would drop the low and the high here.
you could do the .2 or shoot a group of 5 with the 3 charge weights left...
Re: Ladder results
I would do .2 gr between 43.8 and 45, that's only 7 rounds. That said, if you want to do more shootin while there--which is my weakness, load up some rounds for groups at longer distance as week, even if not 500yrds, maybe at 44, 44.3 and 44.5. Will give you the odd grain information for comparison.
I would do .2 gr between 43.8 and 45, that's only 7 rounds. That said, if you want to do more shootin while there--which is my weakness, load up some rounds for groups at longer distance as week, even if not 500yrds, maybe at 44, 44.3 and 44.5. Will give you the odd grain information for comparison.
Re: Ladder results
If at all possible I would recomend doing your ladder testing farther out its really hard to see a good spread at 200 yards if you push this out to say 500 yards it should be much easier to see results.
If at all possible I would recomend doing your ladder testing farther out its really hard to see a good spread at 200 yards if you push this out to say 500 yards it should be much easier to see results.
Re: Ladder results
Done thing bedding would change barrel harmonics--at least not to any appreciable extent. I certainly think its a good idea to do whatever accuracy work you want done to your rifle before final load work up. Narrow it down, take to 500, and bet you find where you want to be. One more trip playing with seating depth and your done.
Done thing bedding would change barrel harmonics--at least not to any appreciable extent. I certainly think its a good idea to do whatever accuracy work you want done to your rifle before final load work up. Narrow it down, take to 500, and bet you find where you want to be. One more trip playing with seating depth and your done.
Re: Ladder results
OK, picked up my rifle and got back to the range to try 3 different loads with 2 different bullets (hornady BTHP and Amax both 178g)
to me it looks like that Amax is dealing with the jump to the lands better than the BTHP but I can't figure out why I would lose velocity with the 44.7 over the 44.4. Maybe out of barrel?? (24" 1/12" TWIST)
OK, picked up my rifle and got back to the range to try 3 different loads with 2 different bullets (hornady BTHP and Amax both 178g)
to me it looks like that Amax is dealing with the jump to the lands better than the BTHP but I can't figure out why I would lose velocity with the 44.7 over the 44.4. Maybe out of barrel?? (24" 1/12" TWIST)
