Re: Hot 6mm Rounds
Rocky Gibbs started the gibbs line out of Lewiston Idaho I believe. They have been around for many years and I don't know why they didn't gain more popularity. Some didn't like the short necks which are only about .25 inches. The Gibbs are all you can get out of a blown out 30'06 case. I have all the Gibbs from 6mm to 338 caliber and all of them will shoot right with the standard magnums with less powder, recoil, noise, etc. In other words 240 gibbs=240 wby, 264 gibbs=264 win mag, 7mm gibbs=7mm rem mag. 30 gibbs=300 win mag, 338 gibbs=338win mag. The = just makes it easier to type, they are not equal but are very close to these magnums. Close enough really that a big game animal would not know the difference and neither would the shooter. RCBS makes dies for them but I just use the generic hornady neck dies. You can rent the reamers which is what I did. Brass is very easy to form and they are easy to load for. Use 25-06 brass for the 240 and neck size it until the bolt closes easily. In other words you are using the caliber difference to headspace the cartridge so you don't get any stretch. You want the 6mm-25 caliber step up to fit snug but not tight in the chamber. Load and fire and you then have a 240 gibbs. I use 30-06 brass for the 7mm and 35 whelen brass for the 30 and 338 gibbs. For comparison to the magnums my 338 gibbs shoots a 200 grain ballistic tip 3065 fps which is about the same as a 338 winchester magnum but you don't have the recoil of the 338 winchester.
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