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Hornady Factory loads for the 416 Ruger match the original 416 Rigby ballistics and seriously beat the original 450/400 and 404 Jeffery rounds. All of which earned Sterling reputations !

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The original 450/400 was 2050 fps I think with a 400 gr. The original .404 was about 2150 fps or there abouts. Seemed acceptable back in the day.

Now the .404 reaches 2300 to 2400 fps.

All these cartridges have very similar performance. From 2100 to 2400 fps and even up to 2600 fps I believe with 400 gr bullets.

Myself 2350 fps plus or minus is fine.

What speeds are people getting with 450 gr projectiles, .416 or .423?

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I never loaded 450's..only 400's ..never saw a need for it..my 400's were right at 2400- when chrono'd.. like 2412--2420.. Primers all looked good at that speed..no excessive pressures..

At that, the A-Frames blew through a big buff bull and killed another bull also on his off side.. it was a two for one Tuesday in Zimbabwe..