On the point of barrel length and it's effect on manufacturers published velocities... Shooters have always been drawn to higher velocities and manuf played that up in their advertising and data tables. Back between wars, when most if not all African game ammo was produced in England, the Brits stacked the deck to show their ammo and cartridges were vastly superior to those of the Continent. Many heated discussions were held over 375 Flanged vs. 9.3X74 and .416 Rigby vs. 10.75X68 etc. The data tables showed the Brit cartridges to be vastly superior with similar bullet weights. The truth could be found in that little block listed as 'barrel length'. The British cartridges were generally tested with 32-36" barrels and the European with 20-22" barrels! Most buyers went down the list and looked at velocity and bullet weight and inquired no further in how they got there. Sorry if I went off on a tangent but my point is that advertised data is only that...advertising. The truth is in verification.
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