| 500grains |
| (.416 member) |
| 30/08/12 12:44 AM |
|
Re: The .505 Gibbs...per NRA article
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Quote:
Author says the barrel was 21" and he used healthy amounts of slow burnng powders.
Is this not a contradiction: very short barrel and slow burning powder?
Think in terms of barrel volume (pi x radius-squared x length of barrel). A .50 cal barrel has a lot of volume in only 21 inches. You do not need a 26 in barrel in a .505 Gibbs.
But the Gibbs case is huge and either you need to use a slow burning powder to fill that case up, or you have to use a filler to take up unused case volume if using a medium burning rate powder.
I said my peace about the .505 here:
http://africanhuntermag.com/HUNTING%20ELEPHANT%20WITH%20.505%20GIBBS.pdf