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Long Range Hunting & Shooting
300 Norma Improved. Load testing, info, and builds
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<blockquote data-quote="rpierce" data-source="post: 2145108" data-attributes="member: 20643"><p>So I got some new 300 Norma Improved dies in from Bullet Central and decided to try them out on a brand new INSTOCK rifle with my new longer freebore reamer and a 26" barrel. I grabbed a pound of N570 off the shelf. I grabbed some brass that has been fired atleast 5 times. Just deprimed it, annealed it, trimmed it and ran a brush through the neck. Used imperial lube and ran it through the new die. I started out at 86 gr of N570 with 245 bergers. I did the powder charge test at 100 yds since it was too late in the day to go set my target camera and targets up at 580 yds. This was the first shots down the rifle. I didn't hit pressure until 93.5 gr of n570 which was 3127 fps. I had a slight ejector mark and a slight bolt click. I figured this was about max. I noticed there was a node 2 gr below max at 91.5 gr. 91-92 gr had an ES of 10 fps and was 3065 fps average. So I loaded the last 4 rounds up at 91.5 gr. Went out this morning and setup on my 580 yd steel plate. Had a little bit of a left to right wind. First shot went over the plate so I came down a minute and shot the next 3 shots into probably the tightest group Ive ever shot at 580 yds. It was on steel so I couldn't get an exact measurement of the group but it appeared that they all hit the same exact spot. When I got down there I couldn't differentiate any shots on the gray splat on the plate. 3065 fps with a 245 grain berger and its 2 grains under pressure. Punch the numbers in on that combo and its a straight up freight train. </p><p></p><p>Rifle has the following components:</p><p>Kelbly Atlas</p><p>Manners EH1</p><p>Proof carbon with 1.250 shank</p><p>Titanium self timing 5 port "Muscle" brake</p><p>Hawkins BDL with wyatts box</p><p>Triggertech Primary</p><p>Nightforce NX8 F2 4-32 MOA bedded and leveled into a set of 6 screw NF rings with NF level cap. </p><p></p><p>Rifle weighs 10 lbs 1 oz with optics. </p><p>I was able to spot hits no problem while shooting off the bipod with the scope at 26x. 245 grain @3065 fps</p><p></p><p>[ATTACH=full]259506[/ATTACH][ATTACH=full]259507[/ATTACH][ATTACH=full]259508[/ATTACH][ATTACH=full]259509[/ATTACH][ATTACH=full]259510[/ATTACH][ATTACH=full]259511[/ATTACH][ATTACH=full]259512[/ATTACH][ATTACH=full]259513[/ATTACH][ATTACH=full]259514[/ATTACH]</p></blockquote><p></p>
[QUOTE="rpierce, post: 2145108, member: 20643"] So I got some new 300 Norma Improved dies in from Bullet Central and decided to try them out on a brand new INSTOCK rifle with my new longer freebore reamer and a 26" barrel. I grabbed a pound of N570 off the shelf. I grabbed some brass that has been fired atleast 5 times. Just deprimed it, annealed it, trimmed it and ran a brush through the neck. Used imperial lube and ran it through the new die. I started out at 86 gr of N570 with 245 bergers. I did the powder charge test at 100 yds since it was too late in the day to go set my target camera and targets up at 580 yds. This was the first shots down the rifle. I didn't hit pressure until 93.5 gr of n570 which was 3127 fps. I had a slight ejector mark and a slight bolt click. I figured this was about max. I noticed there was a node 2 gr below max at 91.5 gr. 91-92 gr had an ES of 10 fps and was 3065 fps average. So I loaded the last 4 rounds up at 91.5 gr. Went out this morning and setup on my 580 yd steel plate. Had a little bit of a left to right wind. First shot went over the plate so I came down a minute and shot the next 3 shots into probably the tightest group Ive ever shot at 580 yds. It was on steel so I couldn't get an exact measurement of the group but it appeared that they all hit the same exact spot. When I got down there I couldn't differentiate any shots on the gray splat on the plate. 3065 fps with a 245 grain berger and its 2 grains under pressure. Punch the numbers in on that combo and its a straight up freight train. Rifle has the following components: Kelbly Atlas Manners EH1 Proof carbon with 1.250 shank Titanium self timing 5 port "Muscle" brake Hawkins BDL with wyatts box Triggertech Primary Nightforce NX8 F2 4-32 MOA bedded and leveled into a set of 6 screw NF rings with NF level cap. Rifle weighs 10 lbs 1 oz with optics. I was able to spot hits no problem while shooting off the bipod with the scope at 26x. 245 grain @3065 fps [ATTACH type="full"]259506[/ATTACH][ATTACH type="full"]259507[/ATTACH][ATTACH type="full"]259508[/ATTACH][ATTACH type="full"]259509[/ATTACH][ATTACH type="full"]259510[/ATTACH][ATTACH type="full"]259511[/ATTACH][ATTACH type="full"]259512[/ATTACH][ATTACH type="full"]259513[/ATTACH][ATTACH type="full"]259514[/ATTACH] [/QUOTE]
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300 Norma Improved. Load testing, info, and builds
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