This allows you to develop literally tons of pressure without the usual concern about press frame deflection or misalignment. Unlike other reloading presses which connect the linkage to the lower half of the press, the ULTRAMAG’S leverage system is connected to the top of the press frame. €œThe largest and strongest press available for the toughest reloading chores.â€Īt first glance you will see what sets the ULTRAMAG apart from all other reloading presses: the unique location of its compound leverage system. I feel Redding makes some of the best presses out there and if you're looking for a heavy-duty press for forming brass or just loading large cartridges, the Ultramag would be appropriate. 45-70 has plenty of recoil to accomplish this if you fail to do your part.I own a Redding T-7 turret press and I love it dearly. And remember: All bullets to be used in tubular magazines must be flat-tipped and their cannelures must be designed to prevent the bullet from shifting deeper in the cases under recoil. 45-70 will have crimp cannelures that are positioned to fall between those values when loaded and crimped. They require a length that falls between 2.490 and 2.550 inches for reliable feeding. Fortunately, the word "flexibility" I used before to describe this cartridge translates to "being forgiving." Still, consider bulky cast-bullet propellants like Accurate Arms 5744 or IMR-4759 when loading low-velocity loads.Ĭartridge overall length is important for. 45-70 is not too picky, but very low-volume propellant charges may show larger ballistic variations than you want. If you're loading light, keep an eye on airspace. 45-70 excels with many of the propellants you would load in the. Like many straight-wall cases that evolved during the blackpower days, the. Plinking loads in the 1,200- to 1,400-fps range will usually not stress cast bullets regardless of the rifling style. You will probably find that loading a little lighter helps the bullet stay in good contact with the rifling. If you have a rifle with the shallow groove pattern and want to shoot cast bullets, the only workable out that seems effective is to cast the bullets very hard-linotype hardness seems to work best. They shot great with jacketed bullets but often failed to accurately shoot cast lead bullets.Ĭowboy action shooting has influenced many riflemakers to revert to "cut" rifling with a pattern that works well with either jacketed or cast lead bullets. Barrels were mostly button-rifled (swaged) with a multi-groove pattern having shallow grooves. When new rifles appeared in the second half of the 20th century, jacketed bullets were the norm, and rifling reflected that. 45-70 started as a lead-bullet cartridge, and old barrels were rifled with a pattern of lands and grooves aggressive enough to engage fairly soft lead. I load either an Ideal 300-grain or an RCBS 325-grain cast bullet with a modest charge of IMR-4759 or Accurate Arms 5744 the cannelure irons out nicely with little additional stress to the case. People have built tools to remove this cannelure, but I find it as easy to fire-form the cannelure out of the way. Fortunately, the company that did this has seen the light and eliminated this superfluous feature from its unprimed. If you loaded a bullet that sat deeper in the case than the factory bullet, you quickly found that the cannelure stopped the bullet as effectively as a steel plate. It allowed the base of the old 400-grain softpoint to "perch" to avoid being deep-seated by recoil in a tubular magazine.
It was done when the case was made, not after it was loaded as was more common. 45-70 cases, some may feature a deeply rolled cannelure.
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