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The Basics, Starting Out
Hornady .277 145 grain ELDX?
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<blockquote data-quote="Capt RB" data-source="post: 1539314" data-attributes="member: 85987"><p>I fine tuned a load today with RL26 and the 130 sst. I had run upto 61 grains in ww brass 215 and the 130sst. I didn't get the velocity I expected and went to Federal brass. Knowing it has a bit less volume I went from 61.2-62 in .2 increments. I also went to 91/2M primers. The velocities went like this 61.2 3141fps, 61.4 3139fps, 61.6 3144 61.8 3147fps and 62 3155.. The 62 had a bit of a crater in the primer no swipe but pretty flat. I decided that is just out of the node so I kept the MS on and shot a group @ 300yds. The 3 left went 3154 3155 3161fps. 2 touching and 1 about 1 1/2 " low It was that faster shot that was low. I shot the others on the same paper target without the MS. There is about a 1.5moa downward shift on/off. It was hard to determine the size of the 61.2 because it was 1 on and 2 off the target. Looked about 1 1/2" wide and 1" of vertical. Next up the 61.4 Not much vertical about 1/2 but the wind switched from the last group and over the 5 minutes it took went from 1-3 from 6 o'clock to 5-7mph 11-2 oclock. I spread them out about 2.5" my bad I didnt hold any wind. I shot the 61.6 on paper and it started to shoot lower than the previous 2 even with the 1.5moa of up I dialed in after the first group. I put the MS back on for the 61.8 and decided to shoot the steel plate. I had 3141 3143 3141 for those 3 shots. My impact was about 1moa below my point of aim after taking the 1.5 moa out of the scope. I wish I took a picture because I could cover it with a quarter with ease. With the rain snow mix starting I had to change the target backer out for the rifle team and didn't want to get caught.</p><p>I've had extremely good success with RL 26 in the 6.5creed with es. It looks like in the 270 it will continue. The first ladder with the winchester brass showed a node @ 2900fps but I wanted more speed. My coal is way long with the boatail/ogive above the neck shoulder junction. about .025 with this bullet. 3.35 or 3.36coal. I forgot to reset my sizer from the 140gamechanger setting.</p><p>I did the first ladder test with .5 grain increases to get a rough idea where this would shoot. Last year I did a ladder with both 140's and 150's with a slightly faster lot of powder. This is why the first in winny brass didn't get to speed I believe.</p><p>Good luck and be safe. This is what worked in my rifle yours may have a shorter throat tighter bore etc Back off to 59 grains and work up. That will run in any sammi chamber well within safe operating pressure</p></blockquote><p></p>
[QUOTE="Capt RB, post: 1539314, member: 85987"] I fine tuned a load today with RL26 and the 130 sst. I had run upto 61 grains in ww brass 215 and the 130sst. I didn't get the velocity I expected and went to Federal brass. Knowing it has a bit less volume I went from 61.2-62 in .2 increments. I also went to 91/2M primers. The velocities went like this 61.2 3141fps, 61.4 3139fps, 61.6 3144 61.8 3147fps and 62 3155.. The 62 had a bit of a crater in the primer no swipe but pretty flat. I decided that is just out of the node so I kept the MS on and shot a group @ 300yds. The 3 left went 3154 3155 3161fps. 2 touching and 1 about 1 1/2 " low It was that faster shot that was low. I shot the others on the same paper target without the MS. There is about a 1.5moa downward shift on/off. It was hard to determine the size of the 61.2 because it was 1 on and 2 off the target. Looked about 1 1/2" wide and 1" of vertical. Next up the 61.4 Not much vertical about 1/2 but the wind switched from the last group and over the 5 minutes it took went from 1-3 from 6 o'clock to 5-7mph 11-2 oclock. I spread them out about 2.5" my bad I didnt hold any wind. I shot the 61.6 on paper and it started to shoot lower than the previous 2 even with the 1.5moa of up I dialed in after the first group. I put the MS back on for the 61.8 and decided to shoot the steel plate. I had 3141 3143 3141 for those 3 shots. My impact was about 1moa below my point of aim after taking the 1.5 moa out of the scope. I wish I took a picture because I could cover it with a quarter with ease. With the rain snow mix starting I had to change the target backer out for the rifle team and didn't want to get caught. I've had extremely good success with RL 26 in the 6.5creed with es. It looks like in the 270 it will continue. The first ladder with the winchester brass showed a node @ 2900fps but I wanted more speed. My coal is way long with the boatail/ogive above the neck shoulder junction. about .025 with this bullet. 3.35 or 3.36coal. I forgot to reset my sizer from the 140gamechanger setting. I did the first ladder test with .5 grain increases to get a rough idea where this would shoot. Last year I did a ladder with both 140's and 150's with a slightly faster lot of powder. This is why the first in winny brass didn't get to speed I believe. Good luck and be safe. This is what worked in my rifle yours may have a shorter throat tighter bore etc Back off to 59 grains and work up. That will run in any sammi chamber well within safe operating pressure [/QUOTE]
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Hornady .277 145 grain ELDX?
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