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Posted: 5/26/2018 2:33:59 PM EDT
[Last Edit: owlless]
.260 Remington
H 140 ELD CCI BR-2 Prime once fired brass RL16 2.900" OAL Here is my ladder 40.0g - 2520 40.4g - 2531 40.6g - 2553 40.8g - 2549 41.0g - 2578 41.2g - 2585 41.4g - 2589 41.6g - 2616 41.8g - 2634 42.0g - 2633 42.2g - 2648 42.4g - 2655 42.0 doesn't look too bad. I would like to move up to 43.0 see whats there. 2650 would be a nice place to land with the 20" barrel. |
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GA, USA
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Posted: 5/26/2018 4:35:31 PM EDT
[#1]
I'd try a little higher. I am at 43.2 with H4350 in a 20".
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TX, USA
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Posted: 5/26/2018 7:38:11 PM EDT
[Last Edit: Demphna2]
[#2]
Any pressure signs yet? You've got a couple spots that would be worth some investigating, but if there aren't any pressure signs just yet, you might could go a little higher
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Posted: 5/26/2018 8:06:01 PM EDT
[#3]
fastest i am going out of my Tikka CTR 20" is 2751 with 39.5 grains of N540 powder.
good luck with your reload i love this rifle 
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Posted: 5/26/2018 11:40:43 PM EDT
[#4]
No pressure signs. In fact primers look flatter on the Prime ammo though I don’t know the exact components.
I’ve loaded up more loads from 42.0 to 43.6. Hopefully I’ll get to shoot tomorrow. |
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Posted: 5/27/2018 7:33:30 AM EDT
[#5]
Quote HistoryOriginally Posted By cruze5:
fastest i am going out of my Tikka CTR 20" is 2751 with 39.5 grains of N540 powder. good luck with your reload i love this rifle Are you shooting 140’s? |
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Posted: 5/27/2018 2:58:58 PM EDT
[#6]
.260 rem?
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Posted: 5/27/2018 4:13:27 PM EDT
[#7]
Yes .260.
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Posted: 5/27/2018 7:13:42 PM EDT
[#8]
Quote HistoryOriginally Posted By owlless: I’d love to get 2700. 2750 would be better. Are you shooting 140’s? |
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Posted: 6/3/2018 6:10:00 PM EDT
[Last Edit: owlless]
[#9]
More data from today. I did a ladder from 42.0g RL16 to 43.6g RL16. Even at 43.6 primers were not as flat as the prime ammo, but I don't know the components they use.
The 42.0 - 42.4 did match last range session but different conditions for my optical chronograph. Overcast with rain last time, sunny and warm today. H 140 ELD 2.900" COAL RL16 CCI BR-2 Primer Prime once fired cases 42.0g - 2626 42.2g - 2636 42.4g - 2644 42.6g - 2686 42.8g - 2692 43.0g - 2675 43.2g - 2701 43.4g - 2733 43.6g - 2742 So what does the hive think? Here is the group.  Attached FileI also loaded some 140 H BTHP (NOT ELD) at 42g RL16 to see what happened. I pulled one shot but not a bad group at 100. 2645 2616 2612 2621 2628 2623 2600 2586 2615 2614 2616 Average 15.7 Stdev  Attached FileOnce again Prime did not do very well. Velocities were the same as last range session (see post in my prime ammo thread) but accuracy was not good. This was me trying. Prime Factory .260 130 grain bullet 2745 2724 2725 2678 2722  Attached File |
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USA
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Posted: 6/4/2018 8:15:48 AM EDT
[Last Edit: towerofpower94]
[#10]
42.0g - 2626
42.2g - 2636 42.4g - 2644 I'd load up 20 at 42.2gr and see what they do in a couple of 100yd 5rd groups and then take the rest to distance. ETA: and get all 20 over the chrono to see what the load will do from an ES/SD standpoint with a statistically significant sample size. |
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Posted: 6/4/2018 10:09:09 AM EDT
[#11]
Quote HistoryOriginally Posted By towerofpower94:
42.0g - 2626 42.2g - 2636 42.4g - 2644 I'd load up 20 at 42.2gr and see what they do in a couple of 100yd 5rd groups and then take the rest to distance. ETA: and get all 20 over the chrono to see what the load will do from an ES/SD standpoint with a statistically significant sample size. |
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USA
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Posted: 6/5/2018 7:10:51 AM EDT
[#12]
Quote HistoryOriginally Posted By owlless:
I was going to try 43.5 also. Max loads rarely give best accuracy but it’s worth a shot. Quote HistoryOriginally Posted By owlless:
Originally Posted By towerofpower94:
42.0g - 2626 42.2g - 2636 42.4g - 2644 I'd load up 20 at 42.2gr and see what they do in a couple of 100yd 5rd groups and then take the rest to distance. ETA: and get all 20 over the chrono to see what the load will do from an ES/SD standpoint with a statistically significant sample size. Would suck to think you've got a good node, just to watch it evaporate when the temp swings a bit and you realize it was only .2gr wide. Best of luck either way and keep us posted |
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Posted: 6/16/2018 8:39:13 PM EDT
[Last Edit: owlless]
[#13]
Conditions were not ideal today for shooting. I thought it would be overcast but it turned into partly sunny. I get the best results from my chronograph on overcast days like the last few. Anyway, still profitable.
NODE 42.2g 42.2g RL16 140 H ELD 2.900" OAL CCI BR2 Lost a few data points
LADDER 43.0-43.8 I re-ran the ladder from 43.0 grains and extended to 43.8. 43.0g - 2723 43.2g - 2705 43.4g - 2741 43.6g - 2744 43.8g - 2760 Although I didn't see any pressure signs I think 43.8 is far enough. I'm going to load some at 43.6 and check for accuracy. 75g .223 FOR FUN Not precision rifle rounds for sure. Hornady 75g BTHP LC Mixed cases 24.0g Varget thrown with Lee Perfect Powder measure CCI 400 1/7 16" Daniel Defense crome lined barrel
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Posted: 6/19/2018 3:08:48 PM EDT
[#14]
Quote HistoryOriginally Posted By towerofpower94: If I was going to load enough at 43.5gr to see if they group well and give a good ES/SD, I'd go a couple rungs higher on the velocity ladder first, just to make sure the node is wide enough to make it worthwhile and to check for when pressure signs show up. Would suck to think you've got a good node, just to watch it evaporate when the temp swings a bit and you realize it was only .2gr wide. Best of luck either way and keep us posted @owlless Since you live in OH, and temperatures range from arctic to tropical, how about a temperature sensitivity test? |
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Posted: 6/19/2018 7:31:12 PM EDT
[Last Edit: owlless]
[#15]
Quote HistoryOriginally Posted By Ironmaker: Very interesting advice, not something I've thought about. @owlless Since you live in OH, and temperatures range from arctic to tropical, how about a temperature sensitivity test? I read the article in truth about guns I think about RL 16 temp sensitivity which suggests it’s pretty stable, however, it’s never wrong to prove it for your self. I think I’ll at least do a Hi/Low test with statistically significant sample. Maybe some in a cooler with ice and some in the June sun. That ought get around 100 degree separation. Results inbound... maybe this weekend. Edited to add Ohio weather sucks. |
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Posted: 6/20/2018 7:24:04 PM EDT
[Last Edit: owlless]
[#16]
I think I found my load. Now to work on my loading techniques.
Took the following .260 hand loads to the range today. 20 rounds of 140 ELD and 6 rounds of 140 BTHP (Hornady) 140 ELD 2.900" OAL 43.6g RL16 CCI BR-2 Primer Prime ammo once fired cases Velocity - 2747.4 SD. - 14.60 140 BTHP rest same as above Velocity - 2755.6 SD - 17.13 Edited for Pics Groups. BTHP in middle.  Attached File |
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Posted: 6/20/2018 9:14:50 PM EDT
[#17]
Very nice!
Lose a little concentration on the lower right group? |
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Posted: 6/21/2018 6:55:23 AM EDT
[#18]
Quote HistoryOriginally Posted By Ironmaker:
Very nice! Lose a little concentration on the lower right group? |
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Posted: 6/21/2018 8:53:10 AM EDT
[#19]
is this the factory barrel?
i just tried 2.9 and its cutting it to close for comfort for me. 2.8 has been my go to. today i am trying 2.825. 2.9 will not close the bolt. |
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Posted: 6/21/2018 5:58:02 PM EDT
[Last Edit: owlless]
[#20]
Quote HistoryOriginally Posted By cruze5:
is this the factory barrel? i just tried 2.9 and its cutting it to close for comfort for me. 2.8 has been my go to. today i am trying 2.825. 2.9 will not close the bolt. I can go longer than 2.900 with no problems. I’ll check my records when I get home. The mag will handle up to 2.950 with room to spare. Edited to say with the ELD jammed into the lands is Between 2.980 and 2.990. |
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Posted: 9/30/2018 6:29:29 PM EDT
[Last Edit: owlless]
[#21]
I loaded up some rounds with a different lot of reloader 16 than above.
43.6g RL16 2.900" OAL BR-2 Primer.140 ELDm Prime once fired. 2717 vs. the previous reported above. That’s a good bit slower. I edited this and removed previous comments becaus those rounds were from same lot. Different bottle bought at different time but same lot. |
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Posted: 11/17/2018 5:19:20 PM EDT
[#22]
I needed a few more rounds for the last match of the year this week. I had a couple hundred Hornday 140 BTHP and primers but no powder.
I got some H4350 Did a one day load development. Tikka 20" barrel Prime 2x fired brass CCI BR-2 Hornady 140 BTHP 2.845 OAL Here is the ladder. Really more to check the pressure since I was going to have to go with one of the 4 pre-loaded loads I brought with me in interest of time. 41.0 - 2677 41.5 - 2644 41.8 - 2644* think this was a failure to read 42.0 - 2663 42.3 - 2694 42.6 - 2718 42.8 - 2708 43.0 - 2726 43.2 - 2688* this was weird 43.4 - 2750 43.6 - 2780 43.8 - 2799 * AWESOME * 44.0 - 2788 I'm going to go with 42.5 for the match just because I have a zero for it and it was the most accurate of the 4 loads I brought. BUT... I'm going to experiment around 43.8 with ELDM's for next season. Would be great to get close to 2800. |
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Posted: 11/17/2018 10:53:12 PM EDT
[#23]
How many rounds at each powder charge?
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Posted: 11/17/2018 11:01:31 PM EDT
[Last Edit: owlless]
[#24]
Quote HistoryOriginally Posted By Ironmaker:
How many rounds at each powder charge? Six for the “groups” I brought 6 rounds each of 41.5, 42.0, 42.5, and 43.0 hoping one would be look decent and have a zero close to my other load. Edited to say I’d like to go today and get a better zero and more data but probably won’t. Chances are I won’t even shoot these rounds I have 75 of the regular load left and that’s about what I average. |
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