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Q&A for SIG SAUER Sierra3BDX 5x20mm Rifle Scope Combo Kit 30mm Tube — 4 Questions & 4 Answers

Name SIG SAUER Sierra3BDX 5x20mm Rifle Scope Combo Kit 30mm Tube
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Q
Jon, guest, from TN, United States, asked on July 06, 2022

Will this scope handle the recoil of 45-70 lever action?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on July 20, 2022

Yes, the SIG SAUER Sierra3BDX 5x20mm Rifle Scope Combo Kit 30mm Tube can be used with a 45-70 chambered lever action. Just ensure that it is mounted securely.

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Q
David, member, from MD, United States, asked on June 26, 2022

Will the bdx ballistics pair with a 450 bushmaster? Didn’t see it on they’re preset ballistic chart for the bdx system.

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on July 20, 2022

There is not a specific ballistic setting for 450 Bushmaster with the SIG SAUER Sierra3BDX 5x20mm Rifle Scope Combo Kit 30mm Tube.

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Q
Milton, guest, from CO, United States, asked on May 23, 2021

Can this be used on the ar15 or ar10 platforms

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on May 09, 2022

Yes. The Sig Sauer Sierra3BDX 5x20mm Rifle Scope Combo Kit can be used with the AR15 and AR10 platform. When using the SIG BDX app, it will provide ballistic information and calculations for your specific caliber and rifle.

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Q
GoMopar440, member, from MT, United States, asked on April 15, 2021

Two part question: What is the tube diameter of the scope, and what is the recommended ring height for it to co-witness with standard AR iron sights?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on May 09, 2022

The Sig Sauer Sierra3BDX 5x20mm Rifle Scope uses a 30mm maintube. I would recommend using a dedicated AR15 scope mount. Trying to co-witness this scope with iron sights would not work because the scope will un-focus your front sight. Using an AR15 scope mount like the Aero Precision Ultralight 30mm Scope Mount (linked below) would be my recommendation.
https://www.opticsplanet.com/aero-precision-ultralight-30mm-scope-mount-spr.html

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