Official .260 tOBR Thread-Pics/Range/Loads/Updated Thread Index (Page 47 of 188)
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Originally Posted By DuneShoot:
Took the LT260 out again with mixed results at 1K yards. Still a good time and good practice. Did have good results with my loads in a Grendel at 500 yards :) I'm about to start reloading for this rifle and browsed the OP for links within this thread. Didn't find what load seems to work best with H4350, Hornady 130 ELD-M's, and Lapua brass. D3 is that data in this thread somewhere? I thought you used these components, did you just use the data on Hodgsons site, 39.7 to 42.7gr's? And should we load in .3gr increments? I'll probably start with once fired Hornady brass, then use the Lapua. How many loads are people getting with these 2 cases? 
Some Targets pics to go with that load data above in this thread https://www.ar15.com/forums/Industry/A-Tale-of-TWO-60-s-Ultimate-Upper-Kits/219-286324/ |
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Originally Posted By DuneShoot:
Took the LT260 out again with mixed results at 1K yards. Still a good time and good practice. Did have good results with my loads in a Grendel at 500 yards :) I'm about to start reloading for this rifle and browsed the OP for links within this thread. Didn't find what load seems to work best with H4350, Hornady 130 ELD-M's, and Lapua brass. D3 is that data in this thread somewhere? I thought you used these components, did you just use the data on Hodgsons site, 39.7 to 42.7gr's? And should we load in .3gr increments? I'll probably start with once fired Hornady brass, then use the Lapua. How many loads are people getting with these 2 cases? You should be able to get more than 2 firings. I don't know the max that would depend on pressure. I am going to use SRP brass to thwart off those pressure issues. FRBASEBALL had the best load I have seen printed out on paper. It was a Hornady case with berger ar hybrid. I do think it could be replicated using the ELD. I think .3 grain increases are safe. I would also try other powders besides H4350, it is a great powder but hard to find it seems? I posted above on what powders have been mention in this thread and what I have seen that works. |
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Originally Posted By esstac-: some of my data http://www.pictures.esstac.com/260rem/260%20Hornady%20130%20ELDM%20chrono.JPG Some Targets pics to go with that load data above in this thread https://www.ar15.com/forums/Industry/A-Tale-of-TWO-60-s-Ultimate-Upper-Kits/219-286324/ Any pressure over what we have seen? Not sure of you saw brass that we all posted or not. |
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Originally Posted By DuneShoot:
Took the LT260 out again with mixed results at 1K yards. Still a good time and good practice. Did have good results with my loads in a Grendel at 500 yards :) I'm about to start reloading for this rifle and browsed the OP for links within this thread. Didn't find what load seems to work best with H4350, Hornady 130 ELD-M's, and Lapua brass. D3 is that data in this thread somewhere? I thought you used these components, did you just use the data on Hodgsons site, 39.7 to 42.7gr's? And should we load in .3gr increments? I'll probably start with once fired Hornady brass, then use the Lapua. How many loads are people getting with these 2 cases?  What seemed routine at 600 and 800 is a challenge at 1K, so my advice (as a new long-range shooter), is to ensure you're DOPE and fundamentals are good. I've hit at 1K with an elevation and wind call, then shot the same hold and missed by a foot so, keep at it. Also, in my reading, I can't recall a load performing at 500 yards that isn't performing at 1K.I'll also say that I'm terrible in that I buy stuff just to try it. Here's my bullet inventory: 
I'll waste my time developing a load for each across using several different powders and brass, just because I can, instead of finding a good combination and sticking with it. Okay, back on topic. I didn't have as good results loading hotter in my rifle. I'll go back through the data (and thanks Esstac, I like that spreadsheet layout) but I think my rifle was comfortable in the 41gr range for H4350 with the 130gr ELD-M, regardless of brass or primer. Back off topic, I thought I'd have more time to play around being unemployed, but it's hard work. I'm working like a fiend researching and applying for jobs and it also looks like I may start a Service Disabled, Veteran Owned Small Business. Hopefully this weekend I can collate some data and one of these days update the index. |
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esstac-Great data, thanks! In your group pic's I'm unsure which charge is which group but from your data sheet it looks like your rifle likes the faster speed with lower SD's? 43.5 gr is a fair amount above Hodgson's recommendation.
My data with factory loaded Hornady 130 ELDm's show about 2750fps and SD's from 9 up to 31 which is odd. mette-I'll take input from anyone  I scored 8 pounds of H4350 a while back so I should be set. Also have 2 pounds of IMR4350 I may try.
D3-Yes for sure a challenge at 1K yards. One shot will land and the next will not. I am using a very small target and a larger one would help a lot. Also the 1st outing at 1K was more successful, other days it's hard to be consistant on my little 11x14 torso target. |
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Originally Posted By DuneShoot:
esstac-Great data, thanks! In your group pic's I'm unsure which charge is which group but from your data sheet it looks like your rifle likes the faster speed with lower SD's? 43.5 gr is a fair amount above Hodgson's recommendation. This seems right but you never know really, the spec can go out the window on one rifle vs another. My data with factory loaded Hornady 130 ELDm's show about 2750fps and SD's from 9 up to 31 which is odd. That seems normal, measure BTO on those factory founds, and also you could dismantle a few to weight the powder out. I bet you see some differences. mette-I'll take input from anyone I scored 8 pounds of H4350 a while back so I should be set. Also have 2 pounds of IMR4350 I may try.
Yeah I wish I could score powder like that, I have bad timing I think. D3-Yes for sure a challenge at 1K yards. One shot will land and the next will not. I am using a very small target and a larger one would help a lot. Also the 1st outing at 1K was more successful, other days it's hard to be consistant on my little 11x14 torso target. We will have to plan a meet up before it gets hot again. Maybe get a group of people and hit a long range spot. We can share info and maybe help each other out. |
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Alpha has |
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Box thread!
What could it be??? 
Strider FTW: 
Packed well: 
Five boxes: 
Ah, the new Nosler 130gr RDFs: 
Supposedly blemished, but they look fine to me. Best part was the wife was out when they were delivered, so it's like it never happened.
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Originally Posted By Defender3:
Alpha has
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Originally Posted By mettee:
How uniform is the meplat? I think that is where they are off? From Shooter's Pro: "Blems; Cosmetic Blemishes: Minor discoloration/oxidation of product or scratches on product. These blemishes will not affect performance." ETA - Didn't see any scratches on the outside of the boolits. 
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Originally Posted By Defender3: Doubt that's the issue - blems only deal with cosmetics - anything else rejects the lot. From Shooter's Pro: "Blems; Cosmetic Blemishes: Minor discoloration/oxidation of product or scratches on product. These blemishes will not affect performance."
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Originally Posted By mettee: well then that is good. who cares if the color is off |
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Originally Posted By mettee:
So is the BC on those accurate or not? I know its a new one, but nosler tends to exaggerate their BCs from what I read and hear.
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Originally Posted By mettee: Thats right you have the labradar. I should be free the end of this month to start some loading I cant wait. Scored some RL23 last night. |
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| Bought some of these for the .260 and 6.5CM, I like the idea of click adjustable for these micro-fine adjustments. |
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In case you were not aware, Sierra also sells blems, but they do it by the pound, check them out here.
From another forum recently: "I use a lot of blems from Nosler. Before I first bought any, I called and talked to one of the guys. He told me the blems are only cosmetic, they sold no faulty bullets. A blem could be stained copper from a wash, one example is, Nosler Accubonds have a white plastic tip. Nosler made Accubond bullets for another ammo maker, and this maker wanted red plastic tips. Nosler made a big overrun of these red tipped bullets, and sold the extra bullets as blems. I've been shooting these 7mm 160 grain red tipped Accubonds for years. Another example is Nosler Accubonds do not have a cannelure. Nosler made Accubonds for another ammo maker that wanted their bullets with a cannelure. Nosler sold the overruns as blems, stating these have a cannelurer. |
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Originally Posted By Defender3:
In case you were not aware, Sierra also sells blems, but they do it by the pound, check them out here. From another forum recently: "I use a lot of blems from Nosler. Before I first bought any, I called and talked to one of the guys. He told me the blems are only cosmetic, they sold no faulty bullets. A blem could be stained copper from a wash, one example is, Nosler Accubonds have a white plastic tip. Nosler made Accubond bullets for another ammo maker, and this maker wanted red plastic tips. Nosler made a big overrun of these red tipped bullets, and sold the extra bullets as blems. I've been shooting these 7mm 160 grain red tipped Accubonds for years. Another example is Nosler Accubonds do not have a cannelure. Nosler made Accubonds for another ammo maker that wanted their bullets with a cannelure. Nosler sold the overruns as blems, stating these have a cannelurer. |
yet
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Originally Posted By SmokieRiver:
H4350 in stock |
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Here's some additional testing from Alpha using the SRP and LRP with their 6.5CM brass. Numbers support better ES and SD using the SRP. My SRP Alpha brass should arrive Monday so hopefully I can work up some loads for the 260.
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Originally Posted By Defender3:
Here's some additional testing from Alpha using the SRP and LRP with their 6.5CM brass. Numbers support better ES and SD using the SRP. My SRP Alpha brass should arrive Monday so hopefully I can work up some loads for the 260. https://www.AR15.Com/media/mediaFiles/52736/Alpha_Munitons_Small_RIfle_6_5CM-430969.jpg Better accuracy and more MV out of the LRP though.... |
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Originally Posted By mettee:
Isnt 41.5 grns pretty safe? I think the SD on the LRP would kill the accuracy at range though. Its 13, not bad, but it isnt 5 |
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So you are saying that SD doesnt matter much? Kill was too strong a word.
I pulled this from their WEZ. To me it seems that the smaller the target those percent would keep you on for a hit. On a 20" plate, decrease that to 10" and your off more often.  What about the 41.5 powder charge. |
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Originally Posted By mettee: So you are saying that SD doesnt matter much? I pulled this from their WEZ. To me it seems that the smaller the target those percent would keep you on for a hit. On a 20" plate, decrease that to 10" and your off more often. http://2poqx8tjzgi65olp24je4x4n.wpengine.netdna-cdn.com/wp-content/uploads/2015/04/how-much-does-muzzle-velocity-standard-deviation-sd-matter21.png What about the 41.5 powder charge. What's your question about the charge? 41.5grs of H4350 with the 142 SMK is getting close to max. |
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Originally Posted By mettee:
They were using a 139 scenar, I just thought 41.5 could be low. Hutch mentioned speed. So I was guessing it could be increased. As far as the SD, no sense in buying pricey brass if I can get single digit spread with Hornady brass. |
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Originally Posted By mettee: So you are saying that SD doesnt matter much? Kill was too strong a word. I pulled this from their WEZ. To me it seems that the smaller the target those percent would keep you on for a hit. On a 20" plate, decrease that to 10" and your off more often. http://2poqx8tjzgi65olp24je4x4n.wpengine.netdna-cdn.com/wp-content/uploads/2015/04/how-much-does-muzzle-velocity-standard-deviation-sd-matter21.png What about the 41.5 powder charge. |
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Originally Posted By dHUTCH: I'd like to see that same test run with say....a starting FPS of 30fps higher than what was already tested. Then compare the SD numbers between each group. I would like to see what it does to the group size for kicks. |
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I had some time on my hands after cleaning two tOBRs, the Mausingfield, a S&W M&P Core, a M&P 22 and a M&P Shield, so I weighed some Lapua Brass. I broke out the GemPros, but I could only get one to verify zero.
My Alpha brass should be here tomorrow, so I'll probably do the same to see what I get for weights. 
I weighed the brass in grams and had a spread from 11.207 to 11.296. 
I then reweighed them using grains (told you I had time on my hands), and had a spread of 172.88 to 173.94 (one piece at each extreme). 
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Originally Posted By Defender3:
I had some time on my hands after cleaning two tOBRs, the Mausingfield, a S&W M&P Core, a M&P 22 and a M&P Shield, so I weighed some Lapua Brass. I broke out the GemPros, but I could only get one to verify zero. My Alpha brass should be here tomorrow, so I'll probably do the same to see what I get for weights. https://www.AR15.Com/media/mediaFiles/52736/IMG_6526_JPG-434385.jpg I weighed the brass in grams and had a spread from 11.207 to 11.296. https://www.AR15.Com/media/mediaFiles/52736/IMG_6527_JPG-434387.jpg https://www.AR15.Com/media/mediaFiles/52736/IMG_6528_JPG-434411.jpg I then reweighed them using grains (told you I had time on my hands), and had a spread of 172.88 to 173.94 (one piece at each extreme). https://www.AR15.Com/media/mediaFiles/52736/IMG_6529_JPG-434413.jpg https://www.AR15.Com/media/mediaFiles/52736/IMG_6530_JPG-434412.jpg |
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These came Friday with a nice note from the owner. Attached File |
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Originally Posted By dHUTCH:
These came Friday with a nice note from the owner. https://www.AR15.Com/media/mediaFiles/119119/IMG_3490-434822.JPG |
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My Alpha SRP .260 brass arrived today, and with a nice note from Bob:
Both boxes are from the same lot: 
I weighed one box of 100: 
The spread was 175.88 - 176.94. 
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Originally Posted By Defender3:
Snip Alpha brass has a thicker rim at the base. This should aid in brass longevity when being run through a gas gun; as gas guns are a little more violent on brass extraction. Alpha brass is thicker at the neck than Nosler. Again this should aid in longevity of the brass. This will definitely affect those of you who have dies with neck bushings. Alphra brass is annealed from the factory; Nosler is not. |
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Originally Posted By dHUTCH:
Initial observations compared to virgin Nosler LRP brass. I will bust out the calipers tomorrow and take some measurements. Alpha brass has a thicker rim at the base. This should aid in brass longevity when being run through a gas gun; as gas guns are a little more violent on brass extraction. Alpha brass is thicker at the neck than Nosler. Again this should aid in longevity of the brass. This will definitely affect those of you who have dies with neck bushings. Alphra brass is annealed from the factory; Nosler is not. Originally Posted By dHUTCH:
Originally Posted By Defender3:
Snip Alpha brass has a thicker rim at the base. This should aid in brass longevity when being run through a gas gun; as gas guns are a little more violent on brass extraction. Alpha brass is thicker at the neck than Nosler. Again this should aid in longevity of the brass. This will definitely affect those of you who have dies with neck bushings. Alphra brass is annealed from the factory; Nosler is not. Drawing Brass |
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| Another casual observation, seems the Reloder 23 has a similar burn rate as Reloder 22, but with better temp stability. Looking at Alliant's reloading guide, they only suggest loads for bullets in the 140gr class. |
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Originally Posted By JohnLWare:
...your avatar. It moves. Originally Posted By JohnLWare:
Originally Posted By Defender3:
Another casual observation... P.S. I wasn't aware you were still following this thread.
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