What is the outside diameter 8 ga shell? A friend named Ed hubel designer of the from hell series of cartridges. Said that he bored 10 ga barrels with breech outside diameter of 1.2" to 8 ga industrial and run those modern thin barrels up to 22,000 psi without pressure problems.he said he had or it is possible to build a.monblock for a 10 ga sxs.frame and use non taper straight walled 1.2" 8 gauge barrels and would last forever.running in shotshell psi range. Bit off topic sorry. Lol. I seen that tom armburst experimented with tungsten matrix in the 8 ga with bluedot powder 46 grs I think with 2 1/4 oz at 1250 fps with 10,800 psi. Now I also read of short 8 ga 2 9/16 made by boss thayt could handle only 1 1/2 oz of shot. I talked hellis about the 8 ga they said a square load in the industrial shell would be 2 oz or so they recommend. But from the factory remington loads them with a 3 oz zinc slug. Oh does any one know what psi the factory loaded winchester 8 ga shells run at? I think there probably some crazy.psi sense there milk guns weigh 100 kilos
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