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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
225 eldm
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<blockquote data-quote="Trnelson" data-source="post: 1309151" data-attributes="member: 42308"><p>I loaded seven of the 224.4g lot that had the same bearing surface dimension of '225 ELDM' bullets to test preliminarily. I am going to find the POI and basic velocity over the magnetospeed at 100 to see where these are at and start fouling in the barrel. After seeing what this brief session yields I will tweak the powder charge, possibly seating depth for a subsequent test. I may also chronical a couple of primer changes if something shows some promise. </p><p>I loaded into 3x fired, freshly annealed, fully prepared neck sized 234.8g brass </p><p>Winchester large rifle magnum primers </p><p>Norma 217 powder (what I bave used in this rifle) </p><p>Rifle is a 26" barreled 10 twist 30/338 win mag with 950 total down the pipe. I have ordered a new barrel and I'm down to the last 50 bullets of the 1,000 I bought when I had this rifle put together. I plan to use the 8 month time between ordering and receiving my barrel to test some new stuff while the rifle is still a proven, reliable performer and I still have something known to fall back on. It is fully de-coppered and cleaned for this test. </p><p>CBTO of the ELDM is 2.618" and an overall length of 3.383" this will place me exactly 0.045" off the rifling. I'm currently set up to shoot the 230 Berger at 0.050" off the rifling (3.381" oal and CBTO 2.642") and I'm not inclined to switching my seating die for a preliminary maybe test.</p><p> Goals of this test... I am hoping, realistically, to land some place safely between 2,800 and 2,850 fps and then see what this old stick wants to find best accuracy with these new bullets and then compare them at distance to what I have been using. I know there is a node at 2,830fps with the Berger, but brass life is only two FIFI My current load in this rifle sends the 230 Berger OTM tactical with the best balance of accuracy, brass life and velocity at 2,740 fps. Maybe I'll find sometimg worth extending the time until I swap this barrel out</p></blockquote><p></p>
[QUOTE="Trnelson, post: 1309151, member: 42308"] I loaded seven of the 224.4g lot that had the same bearing surface dimension of '225 ELDM' bullets to test preliminarily. I am going to find the POI and basic velocity over the magnetospeed at 100 to see where these are at and start fouling in the barrel. After seeing what this brief session yields I will tweak the powder charge, possibly seating depth for a subsequent test. I may also chronical a couple of primer changes if something shows some promise. I loaded into 3x fired, freshly annealed, fully prepared neck sized 234.8g brass Winchester large rifle magnum primers Norma 217 powder (what I bave used in this rifle) Rifle is a 26" barreled 10 twist 30/338 win mag with 950 total down the pipe. I have ordered a new barrel and I'm down to the last 50 bullets of the 1,000 I bought when I had this rifle put together. I plan to use the 8 month time between ordering and receiving my barrel to test some new stuff while the rifle is still a proven, reliable performer and I still have something known to fall back on. It is fully de-coppered and cleaned for this test. CBTO of the ELDM is 2.618" and an overall length of 3.383" this will place me exactly 0.045" off the rifling. I'm currently set up to shoot the 230 Berger at 0.050" off the rifling (3.381" oal and CBTO 2.642") and I'm not inclined to switching my seating die for a preliminary maybe test. Goals of this test... I am hoping, realistically, to land some place safely between 2,800 and 2,850 fps and then see what this old stick wants to find best accuracy with these new bullets and then compare them at distance to what I have been using. I know there is a node at 2,830fps with the Berger, but brass life is only two FIFI My current load in this rifle sends the 230 Berger OTM tactical with the best balance of accuracy, brass life and velocity at 2,740 fps. Maybe I'll find sometimg worth extending the time until I swap this barrel out [/QUOTE]
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