User Panel
[#1]
I hate to be an ass but I would try to find a lb of h4350 and see how that compares.
It's a good benchmark and known good combo. |
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[#2]
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[#3]
Originally Posted By castlebravo84:
I can't find it anywhere, and I like the velocity that RL-26 gives. View Quote I called around. About the 10th store 90 miles away had 4350. Its floating around just a little work and persistence |
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[#4]
Cab't see the picture, but I wouldn't shoot test groups with anything attached to my barrel that wouldn't be there all the time.
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[#5]
OP - where are you in Texas?
I'm driving to El Paso with my son around July 6-7th to deliver a car for him from Florida. He is at Fort Bliss. If you are on my route - I would be happy to carry a pound out there for you. The 4350 is worth trying. |
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10/22/14 I stand with Canada
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[Last Edit: mbtech]
[#6]
Magspeed really messes my groups up. Personally I'd test velocity and accuracy separately.
ETA. I also shoot 5 shot groups. I've had plenty of times I've had 3 rounds touching and 2 satellites. |
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[#7]
Originally Posted By mustb123:
OP - where are you in Texas? I'm driving to El Paso with my son around July 6-7th to deliver a car for him from Florida. He is at Fort Bliss. If you are on my route - I would be happy to carry a pound out there for you. The 4350 is worth trying. View Quote View All Quotes View All Quotes Originally Posted By mustb123:
OP - where are you in Texas? I'm driving to El Paso with my son around July 6-7th to deliver a car for him from Florida. He is at Fort Bliss. If you are on my route - I would be happy to carry a pound out there for you. The 4350 is worth trying. Originally Posted By mbtech:
Magspeed really messes my groups up. Personally I'd test velocity and accuracy separately. ETA. I also shoot 5 shot groups. I've had plenty of times I've had 3 rounds touching and 2 satellites. |
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[#8]
Originally Posted By castlebravo84:I tested the magspeed with some factory ammo and saw just a slight increase in group size along with a consistent POI shift . . . View Quote At least that's what happened during my own tests, and led to my purchase of a Labradar so I could capture the MV of load development rounds without distorting or putting into question their results. I think you have a good plan moving forward :) |
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[#10]
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Will not shelter in place
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[Last Edit: MadLT]
[#11]
Sorry for the late reply. I was curious what you found with this combo because I'm wanting to try it. BTW your next node is ~ 46.5 grains. Looking at your target, your node probably extends from 46.3 to 46.8 putting 46.5 right in the middle. I'd consider loading a few up at 46.5 and doing a seating depth and a primer test to see what it prefers at the higher node.
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[#12]
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[Last Edit: castlebravo84]
[#13]
Originally Posted By MadLT:
Sorry for the late reply. I was curious what you found with this combo because I'm wanting to try it. BTW your next node is ~ 46.5 grains. Looking at your target, your node probably extends from 46.3 to 46.8 putting 46.5 right in the middle. I'd consider loading a few up at 46.5 and doing a seating depth and a primer test to see what it prefers at the higher node. View Quote |
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[#14]
Originally Posted By smokinghole:
http://i.imgur.com/TVk606M.jpg Build a mount. This will keep it off the barrel. That's just a piece of 90 aluminum. View Quote |
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[Last Edit: popnfresh]
[#15]
Originally Posted By zach_:
Does it eliminate poi shift? I might make one of those tonight. View Quote View All Quotes View All Quotes Originally Posted By zach_:
Originally Posted By smokinghole:
http://i.imgur.com/TVk606M.jpg Build a mount. This will keep it off the barrel. That's just a piece of 90 aluminum. At 6:00 the bullet shifts to 12:00 At 12:00 the bullet shifts to 6:00 At 3:00 the bullet shifts to 9:00 At 9:00 the bullet shifts to 3:00 It appears as if either gas or the magnetic field is pushing the bullet away. |
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MOA ALL DAY- 169 Arfcom rifles confirmed
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[Last Edit: porider]
[#16]
Weight your brass and keep them .5 grains of each other what ever brand you use. I see high ES, SD, velocity spikes from varied brass weights as little as 2 grains. I'd load another batch of 45.1gr as the control with closely matched brass weight. See if you can duplicate that group again.
Your next node is 46.6 - 46.9. That 46.9 high flyer is either your powder thrower throwing a tad more powder or you got a piece of brass weighing a little too much or it was you! I would load another batch of 46.6 with all consistent brass weight to see if you could get that group tighter. The 46.6 - 46.9 node has a velocity spread of 20 fps so depending on what your developing the load for it might matter . Brass Weight (case capacity) and neck tension is the name of the game. Do you anneal? (referring to neck tension) You'll need it after your next range outing. |
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[#17]
Originally Posted By popnfresh:
Not likely. In my testing on two rifles the bullet poi clearly goes away from the bayonet. At 6:00 the bullet shifts to 12:00 At 12:00 the bullet shifts to 6:00 At 3:00 the bullet shifts to 9:00 At 9:00 the bullet shifts to 3:00 It appears as if either gas or the magnetic field is pushing the bullet away. View Quote Labradar still seems to be the best option. $600 with the base, a little less on sale at times. |
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[Last Edit: popnfresh]
[#18]
Originally Posted By zach_:
I thought you tested the repositioning, but I couldn't find the post. Labradar still seems to be the best option. $600 with the base, a little less on sale at times. View Quote View All Quotes View All Quotes Originally Posted By zach_:
Originally Posted By popnfresh:
Not likely. In my testing on two rifles the bullet poi clearly goes away from the bayonet. At 6:00 the bullet shifts to 12:00 At 12:00 the bullet shifts to 6:00 At 3:00 the bullet shifts to 9:00 At 9:00 the bullet shifts to 3:00 It appears as if either gas or the magnetic field is pushing the bullet away. Labradar still seems to be the best option. $600 with the base, a little less on sale at times. The POI shift isn't a big deal, but it is the main reason I added the Labradar to my collection. |
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MOA ALL DAY- 169 Arfcom rifles confirmed
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[#19]
Originally Posted By popnfresh:
Off the barrel mounting would take care of the harmonics issue using it for load development........ I would think. The POI shift isn't a big deal, but it is the main reason I added the Labradar to my collection. View Quote |
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Will not shelter in place
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[#20]
Originally Posted By right_rudder:
The labradar is the way to go.. since adding it, i have gathered MV data on damn near ever shot I've taken. View Quote View All Quotes View All Quotes Originally Posted By right_rudder:
Originally Posted By popnfresh:
Off the barrel mounting would take care of the harmonics issue using it for load development........ I would think. The POI shift isn't a big deal, but it is the main reason I added the Labradar to my collection. |
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MOA ALL DAY- 169 Arfcom rifles confirmed
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[#22]
Originally Posted By popnfresh:
Only thing that sucks is when you forget to arm it.... View Quote I had a good test going. Walked down to the target then to the bathroom to take a leak. Came back and shot another 10 only to realize at shot number 9 that I forgot to re arm it. |
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Will not shelter in place
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[#24]
I think I'd try 47.4 grains alongside 47.5 with your current components.
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[#25]
I tried this combo out and the ocw was 46.4 in Hornady brass with a 147 seated .020" off. ~2.840 OAL. The primer made the difference in how tight it shot. The 210M outperformed the CCI to make five shots touch at 100.
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[#26]
Originally Posted By MadLT:
I tried this combo out and the ocw was 46.4 in Hornady brass with a 147 seated .020" off. ~2.840 OAL. The primer made the difference in how tight it shot. The 210M outperformed the CCI to make five shots touch at 100. View Quote |
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[#27]
Originally Posted By castlebravo84: What velocity did you get with 46.4 gr? I'll have to give the 210M a try if I ever make another attempt with Hornady brass. View Quote |
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[Last Edit: uglygun]
[#28]
Seeming how group 2 has shots very close to that of group 1...
Seems like a no brainer to try for a charge weight between the two and see what it hits... To me part of the reason for OCW is so that you buy yourself some room for tolerance stacking so a little high or a little low still yields good results. I would skip worrying about pushing for more velocity if my group size with THAT combination yielded such tight groups. Want more velocity try a new powder maybe and hope for another node with better velocity. /edit Post made after viewing the original post. Seeing the results that have come along with a change in brass it looks like you are honing in on a good load. |
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[Last Edit: MadLT]
[#29]
After final seating adjustment with the 147s my final OCW came it at 46.5 grains of RL26 with a 210M in Hornady brass. The 147 is seated at .015" off the lands (2.845 OAL). The velocity is 2770 fps and the precision is five shots in to a tiny egg shaped hole.
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