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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
I finally got to shoot my new 300 Ultra
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<blockquote data-quote="ss8541" data-source="post: 21338" data-attributes="member: 104"><p>I finaly got down to 1.5" at 500 the other day. I only got two groups in before the wind got out of hand. The first was 1.5" the second was 1.63" for 3 shots. I was surprised to find out that I can only shoot the 210 berger 60 fps faster then the 240 sierra which I got up to 3140 fps with out to much case expansion. My best powder ended up being 50BMG by 100 fps, and velocity spreads in the single digits. I could get 4 more grains in under the bullet with a compressed load though. I have VV 24N41, and 20N29 on the way to try to improve on this. I would like to get 3200 fps from the 240 MK out of my 29.5" barrel. The soft brass is the problem though. My Average at 500 yards with two bullets and 7 different powders is .75 MOA. I think that this rig shows promise. I am out of bullets and waiting for VV powder though, I only had 35 of the 240 MK's to test so now I need to buy my own. I guess it is time to spend a week or two working up loads for the 6mm with VLD's. I am going to try to burn the nearly new barrel out of it by next hunting season for practice. </p><p> Has anyone tried the very slow VV powders yet? I really think that these may be just the thing.</p><p>Vince</p></blockquote><p></p>
[QUOTE="ss8541, post: 21338, member: 104"] I finaly got down to 1.5" at 500 the other day. I only got two groups in before the wind got out of hand. The first was 1.5" the second was 1.63" for 3 shots. I was surprised to find out that I can only shoot the 210 berger 60 fps faster then the 240 sierra which I got up to 3140 fps with out to much case expansion. My best powder ended up being 50BMG by 100 fps, and velocity spreads in the single digits. I could get 4 more grains in under the bullet with a compressed load though. I have VV 24N41, and 20N29 on the way to try to improve on this. I would like to get 3200 fps from the 240 MK out of my 29.5" barrel. The soft brass is the problem though. My Average at 500 yards with two bullets and 7 different powders is .75 MOA. I think that this rig shows promise. I am out of bullets and waiting for VV powder though, I only had 35 of the 240 MK's to test so now I need to buy my own. I guess it is time to spend a week or two working up loads for the 6mm with VLD's. I am going to try to burn the nearly new barrel out of it by next hunting season for practice. Has anyone tried the very slow VV powders yet? I really think that these may be just the thing. Vince [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
I finally got to shoot my new 300 Ultra
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