Official .260 tOBR Thread-Pics/Range/Loads/Updated Thread Index (Page 9 of 188)
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Originally Posted By jaycoux:
I just switched over to imr 4451 in 6.5 creed. In my barrel (AI) it was slightly faster with less powder. I usually run 42.5 grains H4350 and 142 SMKs. IMR did the same job with 41.7. The accuracy was there too. It was a welcome turn of events, since my supply of 4350 is toast. I don't know how it will function in a gasser though, and I did not rum them in a progressive press. I can say that the ES was good.  It sounds like the IMR could be a good alternative considering the lower capacities of some manufacturer's brass.
If you haven't seen this article already. This one also. |
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| UPS is telling me the LabRadar package should be delivered later today. When I ordered I received a free USB battery pack so I can play with it on the range without burning up batteries. I'll do an unboxing and post pictures later today, and I hope to get to the range Friday with the LabRadar and M3 for some comparisons. |
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Some packages arrived today.
Wife's rat dog is sort of supervising, well, okay, sleeping. 
The LabRadar was boxed and labeled very well, and a bit smaller than I expected. 
The two others, just because. 
The small box has a trigger I wanted to try and at the Easter sale price, it was a pretty good deal. 
The amazon box. I'm still struggling on what direction to go with the wireless in the house. I probably need to spend more time in the Urban Commandos forum. 
The Labradar, baseplate, USB battery pack, SD card and carry pouch. For some reason I thought it would be larger. I need to do a couple of things for the wife, so it will be a few before I can unbox it and take some additional pictures. Shown next to the router to offer a size comparison. 
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I unboxed the LabRadar:
Now I need to start reading the manual. ETA - VERY IMPORTANT - The LabRadar's internal components can be damaged if you drop the radar unit. Make sure you have a stable base that will not be affected by high winds or use a sandbag, etc., to keep the platform / radar stable. |
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I just got my first chrony a few weeks ago as I've been needing one to test reloads. I will definitely be getting a Labradar because they are much easier to use. With mine there is at least a few shots per string that don't read which is aggravating when each round is close to 2 bucks.
I'd like to know if you get and kind of difference between the Magnetospeed and Labradar. I'll keep an eye out for your thoughts on it. |
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Originally Posted By jeep450:
How much was the labradar? Originally Posted By Joshpuh:
We tried using a Labradar the other day and couldn't get it to register suppressed shots  ETA - There are sensitivity settings on the LabRadar and turning it to the highest level solved the problem for me. There are dropped shots once and awhile, but I can get readings with the SOCOM and TQ. In case this might help:  Failed To Load Title Originally Posted By Aby001:
I just got my first chrony a few weeks ago as I've been needing one to test reloads. I will definitely be getting a Labradar because they are much easier to use. With mine there is at least a few shots per string that don't read which is aggravating when each round is close to 2 bucks. I'd like to know if you get and kind of difference between the Magnetospeed and Labradar. I'll keep an eye out for your thoughts on it. Other people have reported slight differences between the M3 and LabRadar. I hope to get out Friday and do some testing and will report back. |
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I'm going to fire up the LR tonight and get familiar with the controls, as well as clean the .260 and get it ready for another range day. In the meantime, here's a picture of today's arrivals, three of the original styled LaRue mags (off the EE) and some Federal 210Ms.
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I powered up the LR and confirmed the firmware was the current version. Then I went through the menus and set them for rifle fire of a 130gr projectile.
Powered on and showing the blue ready, but radar not armed light. 
I powered down and placed the SD card in the slot and then powered back up. I left the unit on for several minutes, powered down and removed the SD card. I put it into a SD reader and viewed the contents in Explorer showing a .csv file was created. 
Some of the menu screens. 
ETA - VERY IMPORTANT - The LabRadar's internal components can be damaged if you drop the radar unit. Make sure you have a stable base that will not be affected by high winds or use a sandbag, etc., to keep the platform / radar stable. |
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Originally Posted By Defender3:
I powered up the LR and confirmed the firmware was the current version. Then I went through the menus and set them for rifle fire of a 130gr projectile. Powered on and showing the blue ready, but radar not armed light. https://www.AR15.Com/media/mediaFiles/52736/IMG-4462-191640.jpg I powered down and placed the SD card in the slot and then powered back up. I left the unit on for several minutes, powered down and removed the SD card. I put it into a SD reader and viewed the contents in Explorer showing a .csv file was created. https://www.AR15.Com/media/mediaFiles/52736/IMG-4458-191642.jpg Some of the menu screens. https://www.AR15.Com/media/mediaFiles/52736/IMG-4457-191641.jpg https://www.AR15.Com/media/mediaFiles/52736/IMG-4459-191643.jpg https://www.AR15.Com/media/mediaFiles/52736/IMG-4460-191644.jpg Cant wait to see how it compares to the M3 |
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Originally Posted By Fr8dog:
Have they announced when the Bluetooth features will be available for the LabRadar? 
ETA: Bluetooth is in the manual though. |
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I'm back from the range. I setup using the Magnetospeed V3 and the LabRadar. I was a bit sidetracked finding a friend at the range and having to speak with him about the .260.
I fired three fouling shots to ensure I was capturing the MVs, then shot strings with the Prime, FGMM and the Hornady, and strings suppressed using the TQ. I'll crunch the velocities and place them in a database for review as soon as I can, as well as detail some of my observations. Until I can get them into the spreadsheet, here are some pictures of the trip. I wasn't firing for group size, I was trying to ensure the data was being captured. My regular spot at the range was open. The only people at first were pistol shooters. 
I set up the M3 using a slightly larger distance between the muzzle path and the bayonet as it seems to be more accurate than using a closer distance to the path. 
Setup using the M3 and LabRadar. ETA - VERY IMPORTANT - The LabRadar's internal components can be damaged if you drop the radar unit. Make sure you have a stable base that will not be affected by high winds or use a sandbag, etc., to keep the platform / radar stable. 
A view of the M3 and the LR screens. 
My brass was piling nicely at 5 O'clock. 
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Here is a spreadsheet with the velocities from today's range trip. I was comparing the recorded MVs using the LabRadar and the Magnetospeed V3.
The M3 is pretty easy to set up using a strap system to clamp onto the outside of the barrel. You align the bayonet so that it is under the flight path of the bullet and a couple of inches out from the front of the muzzle. From there, you plug in the bayonet to the control unit, set the sensitivity and record the shots. The Labradar is a bit harder to setup in that it has multiple menus that have to be set in order to accurately record the MVs. For example, you set the offset from the muzzle and where you want the MV to be recorded, the weight of the bullet, etc., etc. You then set the series and arm the radar, then take your shots. The LR worked well and I didn't have any dropped shots, but you do have to de-arm the radar and save the series, move to the next series and then re-arm the radar. That was a bit more cumbersome than the M3, but once you get used to the order, it's easy to keep on track. I also captured some MVs suppressed. I did drop some shots but that was a problem with the muzzle's position in relation to the radar. Also, I was not getting the downrange velocity capture at the 75 and 100y marks. I suspect it was the placement of the radar in relation to the overhang that disrupted the Doppler pattern. Lastly, the LR has a SD card and every series / shot is captured in a .csv file that exports to Excel.
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Originally Posted By Aby001:
That's very interesting, the LR shows lower es and sd but the average velocity is fairly close between the m3 and LR. I'd imagine there would be a bigger difference between a regular chronograph and the LR. Okay, it's a rainy day in NoVA so today will be consumed with running Cat 7 wire from the basement to the attic and then to the bedroom. I doubt I'll be updating the thread this weekend with data unless some questions are asked. |
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Originally Posted By Defender3:
Here is a spreadsheet with the velocities from today's range trip. I was comparing the recorded MVs using the LabRadar and the Magnetospeed V3. The M3 is pretty easy to set up using a strap system to clamp onto the outside of the barrel. You align the bayonet so that it is under the flight path of the bullet and a couple of inches out from the front of the muzzle. From there, you plug in the bayonet to the control unit, set the sensitivity and record the shots. The Labradar is a bit harder to setup in that it has multiple menus that have to be set in order to accurately record the MVs. For example, you set the offset from the muzzle and where you want the MV to be recorded, the weight of the bullet, etc., etc. You then set the series and arm the radar, then take your shots. The LR worked well and I didn't have any dropped shots, but you do have to de-arm the radar and save the series, move to the next series and then re-arm the radar. That was a bit more cumbersome than the M3, but once you get used to the order, it's easy to keep on track. I also captured some MVs suppressed. I did drop some shots but that was a problem with the muzzle's position in relation to the radar. Also, I was not getting the downrange velocity capture at the 75 and 100y marks. I suspect it was the placement of the radar in relation to the overhang that disrupted the Doppler pattern. Lastly, the LR has a SD card and every series / shot is captured in a .csv file that exports to Excel.
https://www.AR15.Com/media/mediaFiles/52736/260-Chrono-April-2017-LR-and-M3-192288.jpg I look forward to seeing what your handload development looks like. |
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Originally Posted By Blaster7R:
So has anyone run those numbers throe Applied Ballistics or another calculator to see what the superior downrange load is ? I am not sure what prime is loaded with .. It is Norma correct? 
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Originally Posted By Defender3:
Prime is Norma using the 130gr Golden Target bullet. I'm not sure what powder they are using though, but the round I pulled had 43.2grs of powder. https://www.AR15.Com/media/mediaFiles/52736/Prime-FGMM-Pulled-168900.jpg https://www.AR15.Com/media/mediaFiles/52736/Prime-Factory-Powder-Charge-168899.jpg https://www.AR15.Com/media/mediaFiles/52736/DSC-0291-168916.jpg |
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Originally Posted By Aby001:
Looks like h4350, sounds like a mild load as a lot of guys run 44 gr under 130's. My go to load is 140 Berger hybrids, CCI BR2, Lapua brass, and 43.5 gr h4350. That is for a Tikka ctr in 260 but shouldn't be far off for a gas gun. Originally Posted By Aby001:
Originally Posted By Defender3:
Prime is Norma using the 130gr Golden Target bullet. I'm not sure what powder they are using though, but the round I pulled had 43.2grs of powder. https://www.AR15.Com/media/mediaFiles/52736/Prime-FGMM-Pulled-168900.jpg https://www.AR15.Com/media/mediaFiles/52736/Prime-Factory-Powder-Charge-168899.jpg https://www.AR15.Com/media/mediaFiles/52736/DSC-0291-168916.jpg ETA - The powder looks just a tad different than the H4350 I have, the color is off. 
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I plan to get out again soon. Thanks for the great thread. When I am dealing with BS at the office
I use this thread to inoculate myself and get my mind focused on the important issues in life.
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Give the laziest man the hardest job and he will find the easiest way to do it.
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Originally Posted By rugerdog:
I plan to get out again soon. Thanks for the great thread. When I am dealing with BS at the office I use this thread to inoculate myself and get my mind focused on the important issues in life. |
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I ordered some 130gr ELDMs (projectiles) from Midway along with a ejector disassembly tool.
I also ordered some 130gr ELDM cartridges from Buds as they have free shipping on orders over $199. That effectively reduced the price per box to 23.60 (I did spring $3 for insurance), or $1.18 a round. That price was still cheaper than the lowest price I found ($1.08rd) when figuring shipping that would have been $29.10 (WA to VA). That will give me a couple hundred rounds of Prime and Hornady in case I really do get to Quantico at the end of the month. |
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| Been following the thread. Thanks for the info. I've got a FDE tAR on order and I'm considering ordering a 260 barrel. If so, goimg with 22", as I can't see giving up the expected performance of the 4". this thread has pretty much sealed the deal. I'll be contributing once I get it all in hand. |
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Originally Posted By Defender3:
I also ordered some 130gr ELDM cartridges from Buds as they have free shipping on orders over $199. That effectively reduced the price per box to 23.60 (I did spring $3 for insurance), or $1.18 a round. That price was still cheaper than the lowest price I found ($1.08rd) when figuring shipping that would have been $29.10 (WA to VA). ETA: they must have gone up a few cents now 130gr ELDM is $1.22 per round lol I went withe the FGGM is was only a 6 cents a round more got 200 rd to try out.. And Applied Balistics has a custom drag curve for it and not anything for the 130gl eld match so i had to hand put in the info from Hornady websigh.. I ran the numbers in Applied Ballistics at 1000m with a 10mph wind at 90deg and the MV that was stated in this thread and looks like the 130 gr ELDM has .3 Mil less drop but .3mil more wind hold and about 45LB less Energy compared to the FGGM load.. Did not run the numbers on the Prime ammo since it was $7 more a box lol |
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Originally Posted By Blaster7R:
yea FGGM was about 13 cents more a round with the same shipping.. that is kinda what i was wondering which would be the better overall performer ETA: they must have gone up a few cents now 130gr ELDM is $1.22 per round lol I went withe the FGGM is was only a 6 cents a round more got 200 rd to try out.. And Applied Balistics has a custom drag curve for it and not anything for the 130gl eld match so i had to hand put in the info from Hornady websigh.. I ran the numbers in Applied Ballistics at 1000m with a 10mph wind at 90deg and the MV that was stated in this thread and looks like the 130 gr ELDM has .3 Mil less drop but .3mil more wind hold and about 45LB less Energy compared to the FGGM load.. Did not run the numbers on the Prime ammo since it was $7 more a box lol Originally Posted By Blaster7R:
Originally Posted By Defender3:
I also ordered some 130gr ELDM cartridges from Buds as they have free shipping on orders over $199. That effectively reduced the price per box to 23.60 (I did spring $3 for insurance), or $1.18 a round. That price was still cheaper than the lowest price I found ($1.08rd) when figuring shipping that would have been $29.10 (WA to VA). ETA: they must have gone up a few cents now 130gr ELDM is $1.22 per round lol I went withe the FGGM is was only a 6 cents a round more got 200 rd to try out.. And Applied Balistics has a custom drag curve for it and not anything for the 130gl eld match so i had to hand put in the info from Hornady websigh.. I ran the numbers in Applied Ballistics at 1000m with a 10mph wind at 90deg and the MV that was stated in this thread and looks like the 130 gr ELDM has .3 Mil less drop but .3mil more wind hold and about 45LB less Energy compared to the FGGM load.. Did not run the numbers on the Prime ammo since it was $7 more a box lol |
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I did get free shipping so I ordered another case of the Prime last week, which arrived! I should have another case of the ELDMs this week and heck If I didn't have more FGMM tucked away so, I should be good to hit Quantico at the end of the month for some longer range shooting.
ETA - Since the ELDMs are shooting so well, and the stuff is coming in at $1.23rd (versus $1.60rd for Prime and $1.29 for the FGMM), those could end up being my go to factory round. 
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Originally Posted By mettee:
I get some pretty bad case swipes from my bolt, I believe it is not the revised one that you have with the wider oval ejector. Does yours do the same to your brass with that version? If not I need to get that changed out stat. 
Here's a picture from the first range trip showing the case heads where you can also see some minimal swipe (LaRue bolt): 
This is the best I can do for now as I'm at an offsite PM conference and don't have access to the rifle or brass until late Friday. |
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Originally Posted By Defender3:
I don't get any bolt swipe on my LaRue 7.62. I do get some swipe on the .260 but I don't think it's "bad." This is a recent picture where you can see signs of swipe on the top two cartridges, the topmost fired with the JP HP bolt and the middle with the LaRue bolt. I'm not sure how you classify the swipe, but it looks minimal to me. https://www.AR15.Com/media/mediaFiles/52736/IMG-4430-1-189606.jpg Here's a picture from the first range trip showing the case heads where you can also see some minimal swipe (LaRue bolt): https://www.AR15.Com/media/mediaFiles/52736/DSC-0223-159430.jpg This is the best I can do for now as I'm at an offsite PM conference and don't have access to the rifle or brass until late Friday. |
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Originally Posted By mettee:
That does not look too bad, some of mine would cut skin. I need to find that brass and try to post a pic to see what you think. Originally Posted By mettee:
Originally Posted By Defender3:
I don't get any bolt swipe on my LaRue 7.62. I do get some swipe on the .260 but I don't think it's "bad." This is a recent picture where you can see signs of swipe on the top two cartridges, the topmost fired with the JP HP bolt and the middle with the LaRue bolt. I'm not sure how you classify the swipe, but it looks minimal to me. https://www.AR15.Com/media/mediaFiles/52736/IMG-4430-1-189606.jpg Here's a picture from the first range trip showing the case heads where you can also see some minimal swipe (LaRue bolt): https://www.AR15.Com/media/mediaFiles/52736/DSC-0223-159430.jpg This is the best I can do for now as I'm at an offsite PM conference and don't have access to the rifle or brass until late Friday. |
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Originally Posted By Defender3:
What are you shooting, an OBR with the older styled bolt / ejector? What type of spring and buffer combo are you running? |
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Alpha Munitions has some 260 remington brass in stock if anyone wants to try it.
Alpha Munitions 260 brass |
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Originally Posted By buss45:
Alpha Munitions has some 260 remington brass in stock if anyone wants to try it. Alpha Munitions 260 brass |
Carry it, shoot it. (repeat forever)
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Originally Posted By buss45:
Alpha Munitions has some 260 remington brass in stock if anyone wants to try it. Alpha Munitions 260 brass |
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Originally Posted By mettee:
14.5 762 tobr, factory stock, no changes to the system at all. I believe they changed the BCG out once, then they changed out the entire upper. But my bolt does not have the same ejector. |
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Originally Posted By Freakinout:
That looks high for unloaded brass Originally Posted By Freakinout:
Originally Posted By buss45:
Alpha Munitions has some 260 remington brass in stock if anyone wants to try it. Alpha Munitions 260 brass |
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Originally Posted By Defender3:
The 14.5 tOBR has a carbine length gas system IIRC. That must be moving that BCG pretty fast. Have you shot it on the suppressed setting to see how it performs and if it marks the brass? |
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Originally Posted By Aby001:
That's about going rate for good brass, I paid a bit less for Lapua actually. Originally Posted By Aby001:
Originally Posted By Freakinout:
Originally Posted By buss45:
Alpha Munitions has some 260 remington brass in stock if anyone wants to try it. Alpha Munitions 260 brass Originally Posted By IMSHAKN:
Damn this thread to hell, put an order in for the 22" 260 barrel for the FDE tar I've got in order. May have to put in an order for more lapua brass. Originally Posted By jdhill:
14.5" tOBR is a mid-length gas system...
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Official .260 tOBR Thread-Pics/Range/Loads/Updated Thread Index (Page 9 of 188)
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