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Rifles, Reloading, Optics, Equipment
Reloading
28 Nosler with 180 bullets H1000/Retumbo
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<blockquote data-quote="Kmccord" data-source="post: 1471775" data-attributes="member: 99039"><p>For my rifle using Retumbo, my load is 80.7gr of Retumbo with CCI 250 LRM primer and .020 off lands. This produces an average velocity of 3117fps. I had started testing using RL33, I found an accurate load 85.7gr using CCI 250 LRM primer at .020 off lands, but did not follow through to completion. I started working with a new powder IMR8133 on Hornady 180ELDM bullets, currently in the development stage, accuracy seems to be for my rifle at 81.7gr with a CCI 250 LRM primer and .020 off lands. Some helpful tips on development, after firing rounds take a bullet and see if the bullet will slide in and out of the case the length of the bullet, if it hits a wall about the time the boat tail junction is around neck shoulder area of case, you have a donut inside the case and it should be removed. Something that will aid in the prevention, but not always, is to only bump the shoulders of the case back .002. This will help keep you from oversizing the case. After bumping, before loading, see if the bolt will close without issues, if so continue to load at this setting. Another note no matter what powder you use, try to keep a good cleaning regiment at 20 rounds, I have seen my accuracy go to pot on the IMR powder after 30 rounds and cleaning showed lots of Carbon fouling. On cleaning, find your self a good solvent, I use a bore guide and a Tipton carbon rod using Bore tech carbon cleaner and bore tech copper solvent. I also scrub the bore with kroils and jb compound follwed by JB Brite. Good luck and remember to start low on your powder charge and work up to desired accuracy and velocity.</p></blockquote><p></p>
[QUOTE="Kmccord, post: 1471775, member: 99039"] For my rifle using Retumbo, my load is 80.7gr of Retumbo with CCI 250 LRM primer and .020 off lands. This produces an average velocity of 3117fps. I had started testing using RL33, I found an accurate load 85.7gr using CCI 250 LRM primer at .020 off lands, but did not follow through to completion. I started working with a new powder IMR8133 on Hornady 180ELDM bullets, currently in the development stage, accuracy seems to be for my rifle at 81.7gr with a CCI 250 LRM primer and .020 off lands. Some helpful tips on development, after firing rounds take a bullet and see if the bullet will slide in and out of the case the length of the bullet, if it hits a wall about the time the boat tail junction is around neck shoulder area of case, you have a donut inside the case and it should be removed. Something that will aid in the prevention, but not always, is to only bump the shoulders of the case back .002. This will help keep you from oversizing the case. After bumping, before loading, see if the bolt will close without issues, if so continue to load at this setting. Another note no matter what powder you use, try to keep a good cleaning regiment at 20 rounds, I have seen my accuracy go to pot on the IMR powder after 30 rounds and cleaning showed lots of Carbon fouling. On cleaning, find your self a good solvent, I use a bore guide and a Tipton carbon rod using Bore tech carbon cleaner and bore tech copper solvent. I also scrub the bore with kroils and jb compound follwed by JB Brite. Good luck and remember to start low on your powder charge and work up to desired accuracy and velocity. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
28 Nosler with 180 bullets H1000/Retumbo
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