WB
I invented the Rowland before he did, misread a measure
Sunday, August 22, 2021, 06:50

And .454 Casull’d my 70 series .45 ACP with a righteous overcharge of Unique! Luckily I was shooting cast bullets. I had to pull some ammo afterward. The primer looked Un-fired! My 1911 Govt. torqued and almost jumped right out of my hand.

Later I experimented with a custom Glock I built. Blake has studied the topic at considerable length. Beyond what the Rowland guy (tried to charge custom ‘Smiths royalties for making guns chambered for .460) did Blake used long throating and special chambered muzzle brakes. This is the same thing Roy Weatherby used. The bullet is pushed out of the case before actually engaging rifling, increasing capacity, and thus reducing pressure. Really effective in a breach locked semi-auto. I accidentally doubled the throating depth and it still works! 230 gr. (Cast only) at 1400fps! The only useful aspect of the Roland is the mimic of the longer case as in the .451 Detonics to “hopefully” not accidentally shoot it in a stock .45 ACP. I tested the limits and then dropped back to 1200 fps for hunting loads. The cast bullets have less pressure and smoother spikes.

Some of that “don’t do this at home kids”. Alcorn blew a case in his 1911 factory conversion standing next to me. It’s flying real close to the sun.


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