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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 help deciding
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<blockquote data-quote="FEENIX" data-source="post: 2719653" data-attributes="member: 14204"><p>BEEMAN, with your living in Canada, I understand your access limitations. Depends on what 338 cartridges are imported and available. Commercially available ones are the safest bet. 2 come to mind. The 33 Nosler and the 338 Norma. The 33 Nosler is almost the same as the 330 Dakota which I know very well. From a 23" barrel and a 200 gr bullet is very likely to reach 3000 fps, and a 225 gr bullet might be 2800-2875 depending on the powder you have to use. A 250 gr bullet is most likely to reach in the high 2750 fps range. With the Norma and a 250 gr bullet pretty sure you could reach 2825-2850 fps and at or over 3000 with a 200-225 gr bullet. The Norma shoots about 100 fps slower than the Lapua Mag from the same length barrel. Consider subtracting an additional 25 ft/sec/inch of acceleration to get some idea what to expect from a 338Norma shooting from a 23" barrel. The 265 Nosler LRAB is a lead core jacketed bullet and is out of your specified weight range. For ranges of 600 yds or more, BC becomes a significant consideration. The 225 gr Nosler E-Tip has a G1=0.611, the Barnes LRX 250 gr has a G1=0.602, the Badlands 200 gr BD2 has a G1=0.595, and the 225 gr BD2 has a G1=0.665. Nosler products are variably available in the US, the Barnes is listed as unavailable, the 338Norma brass is available in the US, and the Badlands bullets are able to be imported to Canada through Reloading International and readily available in the US. The pic below is a hypothetical 338 Norma load from a 23" barrel calculated using the JBM trajectory calculator with an expected MV of 3150 fps using a 200 gr all copper bullet with a G1=0.595. The MV is extrapolated from that of a 338 Lap Mag 24" barrel using a 200 gr all copper bullet from data listed in the 2022 Hodgdon Annual Manual. Subtracted about 200 fps from the Magpro max charge for that bullet. The Norma case and a 200 gr high BC bullet looks to me like your best combination with all the components available in your country. Hope this info helps.</p></blockquote><p>[/QUOTE]</p><p></p><p>Excellent! I particularly like your comment on the .338 NM cartridge. My .338 NMI is near completion, and I will explore the 250-300g options. I also like my brass choices and availability; Lapua and Peterson.</p><p>[/QUOTE]</p>
[QUOTE="FEENIX, post: 2719653, member: 14204"] BEEMAN, with your living in Canada, I understand your access limitations. Depends on what 338 cartridges are imported and available. Commercially available ones are the safest bet. 2 come to mind. The 33 Nosler and the 338 Norma. The 33 Nosler is almost the same as the 330 Dakota which I know very well. From a 23” barrel and a 200 gr bullet is very likely to reach 3000 fps, and a 225 gr bullet might be 2800-2875 depending on the powder you have to use. A 250 gr bullet is most likely to reach in the high 2750 fps range. With the Norma and a 250 gr bullet pretty sure you could reach 2825-2850 fps and at or over 3000 with a 200-225 gr bullet. The Norma shoots about 100 fps slower than the Lapua Mag from the same length barrel. Consider subtracting an additional 25 ft/sec/inch of acceleration to get some idea what to expect from a 338Norma shooting from a 23” barrel. The 265 Nosler LRAB is a lead core jacketed bullet and is out of your specified weight range. For ranges of 600 yds or more, BC becomes a significant consideration. The 225 gr Nosler E-Tip has a G1=0.611, the Barnes LRX 250 gr has a G1=0.602, the Badlands 200 gr BD2 has a G1=0.595, and the 225 gr BD2 has a G1=0.665. Nosler products are variably available in the US, the Barnes is listed as unavailable, the 338Norma brass is available in the US, and the Badlands bullets are able to be imported to Canada through Reloading International and readily available in the US. The pic below is a hypothetical 338 Norma load from a 23” barrel calculated using the JBM trajectory calculator with an expected MV of 3150 fps using a 200 gr all copper bullet with a G1=0.595. The MV is extrapolated from that of a 338 Lap Mag 24” barrel using a 200 gr all copper bullet from data listed in the 2022 Hodgdon Annual Manual. Subtracted about 200 fps from the Magpro max charge for that bullet. The Norma case and a 200 gr high BC bullet looks to me like your best combination with all the components available in your country. Hope this info helps.[/QUOTE] [/QUOTE] Excellent! I particularly like your comment on the .338 NM cartridge. My .338 NMI is near completion, and I will explore the 250-300g options. I also like my brass choices and availability; Lapua and Peterson. [/QUOTE]
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