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Long Range Hunting & Shooting
Revic BLR 10b vs Sig Kilo 10k
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<blockquote data-quote="LRNut" data-source="post: 3006694" data-attributes="member: 3230"><p>I think you are talking about beam divergence. Like rifle groups, beam diameter gets larger the farther away it goes. There are two common wavelengths used for eye safe rangefinders: 905 and 1535 nm; each has advantages and disadvantages. The 1535 can use more energy and still be eye safe, but isn't as effective in rain or fog. However, it generally provides better LR performance.</p><p></p><p>Laser technology, at least for RFs, is getting pretty mature. Back when I was in the Army, the Abrams tank used (because it was the best tech available) a Yttrium-Argon gas laser that was pretty dangerous to eyes; even the hand held LRFs were not eye safe. But L3 Harris developed an eye safe long range RF for the Abrams.</p><p></p><p>I would be STUNNED if any RF manufacturer made their own lasers, and consequently, I don't think any one supplier has cornered the market on beam divergence, beam orientation, etc. - it is depends on what they want to pay for the laser component. And signal processing has come a long way since the psuedo-binary random sampling method the original Leica used.</p><p></p><p>IMO, at this point, the ability to "zero" the laser, like the SIG Kilo10 can, is a pretty huge advantage. I would also add that I am not inclined to buy any RF that doesn't have AB. Not sure what Revic uses, and haven't used Hornady's 4DOF, but AB is spot on - spin drift, aerodynamic jump, etc - it has it all.</p></blockquote><p></p>
[QUOTE="LRNut, post: 3006694, member: 3230"] I think you are talking about beam divergence. Like rifle groups, beam diameter gets larger the farther away it goes. There are two common wavelengths used for eye safe rangefinders: 905 and 1535 nm; each has advantages and disadvantages. The 1535 can use more energy and still be eye safe, but isn't as effective in rain or fog. However, it generally provides better LR performance. Laser technology, at least for RFs, is getting pretty mature. Back when I was in the Army, the Abrams tank used (because it was the best tech available) a Yttrium-Argon gas laser that was pretty dangerous to eyes; even the hand held LRFs were not eye safe. But L3 Harris developed an eye safe long range RF for the Abrams. I would be STUNNED if any RF manufacturer made their own lasers, and consequently, I don't think any one supplier has cornered the market on beam divergence, beam orientation, etc. - it is depends on what they want to pay for the laser component. And signal processing has come a long way since the psuedo-binary random sampling method the original Leica used. IMO, at this point, the ability to "zero" the laser, like the SIG Kilo10 can, is a pretty huge advantage. I would also add that I am not inclined to buy any RF that doesn't have AB. Not sure what Revic uses, and haven't used Hornady's 4DOF, but AB is spot on - spin drift, aerodynamic jump, etc - it has it all. [/QUOTE]
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Revic BLR 10b vs Sig Kilo 10k
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