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Hunting
Extreme Long Range Hunting & Shooting (ELR)
33xc or 37xc
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<blockquote data-quote="surgeon260" data-source="post: 1763969" data-attributes="member: 103874"><p>The 33XC seems pretty overbore. Most of the load data I've seen uses H50BMG/RL50. I am not a huge fan of being limited to BMG class powders. My 338 Lapua Improved maxes out with RL33 at around 108 grains with capacity to spare, so it just doesn't seem like the XC will be able to make use of the additional capacity with that powder.</p><p></p><p>The 37XC throated for the 400 Flatline is what I would choose. I plan to rebarrel my Lapua Improved to the 37 at some point down the road. It seems to thrive with common powders like H1000/Retumbo/N570 that are less extreme from a burn rate perspective. At my elevation, that bullet will be supersonic past 2500 yards.</p></blockquote><p></p>
[QUOTE="surgeon260, post: 1763969, member: 103874"] The 33XC seems pretty overbore. Most of the load data I've seen uses H50BMG/RL50. I am not a huge fan of being limited to BMG class powders. My 338 Lapua Improved maxes out with RL33 at around 108 grains with capacity to spare, so it just doesn't seem like the XC will be able to make use of the additional capacity with that powder. The 37XC throated for the 400 Flatline is what I would choose. I plan to rebarrel my Lapua Improved to the 37 at some point down the road. It seems to thrive with common powders like H1000/Retumbo/N570 that are less extreme from a burn rate perspective. At my elevation, that bullet will be supersonic past 2500 yards. [/QUOTE]
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Extreme Long Range Hunting & Shooting (ELR)
33xc or 37xc
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