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Posted: 5/15/2017 7:28:53 AM EDT
I have tried 4451 and Reloader 17 with inconsistent results out of my Bergara BMP. I have access to varget, Reloader 17, and 4451 in my bunker.
My rifle is sub-moa capable with Prime 130 grain 6.5 Creedmoor, Hornady American Gunner with 140 grain HPBT, and Precision Hunter loaded with 143 grain ELD X. My rifle is also sub moa with Hornady 143 grain ELD x over Varget and Reloader 17. I have promising sessions with 3 round groups around 42.4 grains and 42.9 grains of R 17. I have loaded up 5 of each charge weight starting at 42.2 grins to 43.0 grains of R 17 in 0.2 grain increments looking to better ID the accuracy node. Brass is Hornady that is full length resized, primer pocket prepped, trimmed to 1.915", and cleaned in an ultrasonic cleaner. Any ideas, or just keep working at it? |
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Posted: 5/15/2017 12:30:08 PM EDT
[#1]
I do not think refining your load is 0.2gr increments will bare fruit. A 1 percent increment is about fine as you can expect to yield tangible differences.
Are chronographing your loads? That ought reveal a lot about the load. |
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Posted: 5/15/2017 1:08:51 PM EDT
[#2]
What's you OAL? How far are you off the lands? Some bullets need to be closer than others.
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Posted: 5/15/2017 6:33:20 PM EDT
[#3]
I'm running book OACL which is 2.810" until I have a powder charge that is promising. Once I get a consistent group size, then I will adjust the OACL to get better performance out of the load.
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Posted: 5/15/2017 7:06:26 PM EDT
[#4]
How far off the lands is that?
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Posted: 5/15/2017 7:30:14 PM EDT
[#5]
I've had success with reloder 16 and 4451 in anything I'd normally use 4350 in.
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Posted: 5/15/2017 7:42:28 PM EDT
[#6]
That's why I am wondering if he might be in an area too far from lands and nothing is really doing well. Usually those two powders will work very well. I would move that bullet out to .020" off the lands and load from there.
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Posted: 5/16/2017 7:51:34 AM EDT
[#7]
Quote HistoryOriginally Posted By Rob01:
That's why I am wondering if he might be in an area too far from lands and nothing is really doing well. Usually those two powders will work very well. I would move that bullet out to .020" off the lands and load from there. |
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DC, USA
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Posted: 5/16/2017 10:26:32 AM EDT
[Last Edit: RangerJoe11]
[#8]
Quote HistoryOriginally Posted By Rob01:
That's why I am wondering if he might be in an area too far from lands and nothing is really doing well. Usually those two powders will work very well. I would move that bullet out to .020" off the lands and load from there. OP, you also mention you've had promising results with a couple loads already. Might try same load and just play with the seating depth. If you really want another powder I've almost used IMR4350 exclusively with good results. Just did some loads under 136gr Scenar-L with great results. Best group was the slow one at 2660fps but was by far my best group out of this rifle. I just need a new seating die as the Lee did not like the Scenar bullets. Also, if you're bullet is far off the lands now be careful using same charge weight and pushing it closer, touching or jamming in the lands. |
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Posted: 5/16/2017 9:18:11 PM EDT
[#9]
Ok, measured my free bore with an OACL gauge.
Cartage OACL with bullet touching the lands is 2.870". Book OACL is 2.810"... that is a hell of a jump! I will go ahead and shoot what I have loaded this weekend and see if one of the powder charges shows promise. If so, I will try the winning charge weight with .020", .030", and .040" off the lands to see which one works the best.... |
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DC, USA
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Posted: 5/16/2017 11:07:19 PM EDT
[Last Edit: RangerJoe11]
[#10]
Keep in mind you're going to want to get a comparator to measure to ogive eventually or once you change bullets, if you don't already have one.
As I'm sure you know, each bullet is constructed differently. Some have a longer distance from the meplat to the ogive so while you may be loading to your preferred COAL in actuality the jump may be larger/smaller. Check this series over on SH. He really lays it out Barney style, which helped me out a lot. Depending on what you're trying to accomplish not all his steps are necessary but good to know, IMO. He also links useful equipment and methods to get it done if you don't have the equip yet. He also has a follow up thread that is just as informative. |
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Posted: 5/17/2017 10:18:51 PM EDT
[#11]
I never could find anything consistent with 4451. I've been testing RE16 with Berger 130s and I've been pretty happy with it so far.
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Posted: 5/17/2017 11:19:50 PM EDT
[#12]
I have a powder charge now that is delivering MOA groups at 100 yards with very little vertical separation.
I am using that charge weight and setting my OACL 0.020" off the lands and moving back in 0.010 increments. I expect to find an OACL that delivers sub MOA in this next batch. |
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Posted: 5/22/2017 11:44:14 AM EDT
[#13]
6.5 creedmoor, Hornady brass, CCI BR 2 primers, IMR 4451 powder.
Sub MOA groups at 100 yards Sierra 130 grain TMK Seated 0.020" off the lands 43.3 grains of powder 2842 FPS with magnitospeed chronograph |
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Posted: 5/22/2017 12:45:46 PM EDT
[#14]
Quote HistoryOriginally Posted By Crazyhorse26:
6.5 creedmoor, Hornady brass, CCI BR 2 primers, IMR 4451 powder. Sub MOA groups at 100 yards Sierra 130 grain TMK Seated 0.020" off the lands 43.3 grains of powder 2842 FPS with magnitospeed chronograph i haven't been able to get a good load with 4451. Using 130 grain Berger tacticals. |
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Posted: 5/22/2017 2:39:20 PM EDT
[#15]
Bergara BMP with 24" barrel
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Posted: 5/22/2017 3:22:53 PM EDT
[#16]
Right on. Out of curiosity, what was your ES on that load?
i abandoned 4451 because I could get the speeds I thought I should get with accuracy and a decent ES |
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Posted: 5/22/2017 7:17:51 PM EDT
[#17]
Will shoot again over chronograph to confirm previous data...
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Posted: 5/24/2017 5:53:05 PM EDT
[#18]
Quote HistoryOriginally Posted By Crazyhorse26:
6.5 creedmoor, Hornady brass, CCI BR 2 primers, IMR 4451 powder. Sub MOA groups at 100 yards Sierra 130 grain TMK Seated 0.020" off the lands 43.3 grains of powder 2842 FPS with magnitospeed chronograph Sub MOA without suppressor MOA with suppressor. Bullets chronographed with suppressor mounted. |
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Posted: 5/24/2017 6:21:51 PM EDT
[#19]
Thanks.
I collected some data today.... when I get time later I'll pull it off the radar. |
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USA
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Posted: 6/9/2017 8:23:15 PM EDT
[Last Edit: towerofpower94]
[#20]
Any updates to this thread?
Just had a Rem 700 rebarreled in 6.5x47L and would prefer to do initial load dev on Berger 130gr AR Hybrids with something besides H4350 and skip the quasi-junkie step of "I just need a little more!" when the pound or two of over-priced H4350 I can find/stumble into runs out. |
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Posted: 6/9/2017 9:06:05 PM EDT
[#21]
Try reloder 16 it's every bit as stable as h4350
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Posted: 6/9/2017 10:19:53 PM EDT
[#22]
Quote HistoryOriginally Posted By TeeRex:
Try reloder 16 it's every bit as stable as h4350 Im getting 2844 fps with Berger 130s out of a 22" barrel and 2860 with the same load in a 24" barrel. |
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USA
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Posted: 6/11/2017 12:57:33 PM EDT
[#23]
Thanks for the tip on RL16, will look to grab a pound or two for testing.
Any other ideas for my 26" barrel, or would the powder range apply? |
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Posted: 6/11/2017 2:11:18 PM EDT
[#24]
Quote HistoryOriginally Posted By towerofpower94:
Thanks for the tip on RL16, will look to grab a pound or two for testing. Any other ideas for my 26" barrel, or would the powder range apply? |
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