12/13/2023 0 Comments .223 subsonic handloads![]() Regardless, these results were mostly observed with loads containing lighter bullets, which are oddly popular among individuals who only purchase factory ammunition. It is unknown if these results were from poor-quality cases, perhaps a poor case neck relationship with the bullet, including tension and alignment, or perhaps a poor powder choice. These loads are likely to produce vertical stringing at long range. Most loads delivered respectable accuracy however, some produced higher extreme velocity spreads than I would be happy with as a precision-oriented handloader and varmint shooter. When using the 527 for previous load development and hunting, it has proven accurate and the rifle bore is shiny like a mirror, which has resulted in minimal fouling.Īs reference ammunition, a variety of factory loads from Federal, Hornady, Nosler, Remington and Winchester were checked for accuracy and velocity, with the results shown in an accompanying table. With that said, velocity variance will probably be between 50 and 150 fps. I wish that I could assign an accurate figure of approximate velocity increases with a 2-inch longer barrel, but there are so many variables it really depends on the individual load, bullet weight, powder and the quality and dimensions of a given rifle barrel. A few factory loads and handloads were cross referenced for accuracy using a Remington Model 700 fitted with a more common 24-inch barrel. it has always given respectable velocities. The 527 features a 22-inch barrel, which is shorter than those found on most varmint rifles, butĪll major bullet companies offer component bullets for the. These rifles feature high-quality, cold hammer-forged barrels that are stress relieved and known for their accuracy. While this observation is not scientific, the load was clearly working well enough to keep the varmint shooting interesting until the sun went down.Ī CZ 527 American rifle was selected to develop the accompanying loads. 204 Ruger loads in the field without cleaning the barrel, and accuracy remained good – certainly good enough to regularly connect on prairie dogs at 500 yards. I have fired in excess of 1,000 rounds of Hornady. Specifically, smaller calibers are often more sensitive to barrel (and powder) fouling, which can degrade accuracy until the barrel is cleaned. 204’s small caliber, it was a perfect candidate for this feature. The Speer 39-grain TNT is an accurate bullet and delivers outstanding terminal performance on varmints.While the above technology is especially useful for a variety of cartridges that are fired in high volume, including handgun rounds, and with the. CFE 223 is the same powder as SMP746 however, the latter is for OEM purposes and is manufactured with much larger lot-to-lot variances, and manufacturers develop new loads with each powder lot with the aid of a pressure barrel that most handloaders do not have access to. military but has now found its way into canister-grade powders that are available to handloaders, such as Hodgdon CFE 223 and very recently Ramshot X-Terminator and others. ![]() This technology was “borrowed” from the U.S. The powder is known by OEM producers as SMP746, which is formulated by Primex. 204 factory loads includes powder containing a decoppering agent that effectively inhibits bullet jacket fouling. 204 Ruger has proven to be an honest 500-yard varmint cartridge with correct loads. 204 Ruger, using spherical powders or super short cut extruded powders will help prevent bridging in the case.bullet weights, typically weighing 39 and 40 grains, bucked wind notably better than lighter bullets. Furthermore, the ammunition containing heavier At the end of a day of high-volume shooting, the comparatively low muzzle report, flat trajectory and low recoil of the. On these particular varmint shoots in Wyoming, Colorado, Montana and Nebraska, 500 to 700 rounds of ammunition were often fired daily while other calibers were used intermittently. This is mentioned because when wind drift moved the bullet off target, another round could instantly be chambered, the “hold” corrected and a hit made without a spotter – before wind conditions changed. For example, its low recoil allowed bullet strike to be observed through the riflescope. ![]() ![]() I was especially pleased with its terminal performance, but there were a couple of virtues that really stood out. 204 first appeared I had the opportunity to use several different rifles and multiple factory loads on varmint shoots. 204 fills the gap between the tiny centerfire. 204-inch bullets, the shoulder was moved forward for increased capacity, and the shoulder angle was changed from 23 to 30 degrees. ![]() 222 Remington Magnum case necked to accept. Select handloads easily exceeded 4,000 fps, duplicating and even exceeding factory load performance.The. ![]()
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