But don’t despair if they’re not on your loading room shelf because many customary propellants provide good speed and accuracy.
So what was once considered a ballistic sin is actually a virtue. Propellant held firmly in place in that manner burns evenly. To make that length cartridge, the Nosler bullet compressed 66.5 grains of Accurate 4350, but only slightly, with no leaning on the loading press handle like a pry bar. Yet only about 0.2 inches of the bullet’s base lies below the bottom of the case shoulder with a cartridge overall length (C.O.L.) of 2.85 inches. The Nosler 180-grain AccuBond is fairly long at 1.38 inches with its tapered polymer tip and boattail. 300 WSM case is spacious enough to hold more than 70 grains of propellant with the base of a bullet seated below the case neck. Mag.) means that bullets weighing 180 and 200 grains will protrude into the usable propellant space. The cartridge’s short case and neck (which is still longer than the. 300 WSM can be loaded with bullets weighing from 130 grains to 200 grains. A few clicks of reticle adjustment will offset that.įor hunting, the. The bullets hit about 3 inches lower at 100 yards compared to 150-grain bullets traveling 3,270 fps. But five-shot groups were round with no vertical stringing. That’s most likely because the propellant charge sloshes around like a sea wave to settle any which way in the. The extreme spread of velocity was 150 fps over 10 shots with H4895 and the Nosler 125-grain Ballistic Tip listed in the load table. One reason is the Hodgdon Powder website has a comprehensive list of reduced H4895 loads for various rifle cartridges that can be adjusted up or down to achieve the best accuracy and desired velocity. 300 WSM with Accurate 5744, H4198, H4895 and Varget and various 125-grain bullets with H4895 being a favorite. Through the years I have had good luck loading practice cartridges for the. 300 WSM shooting 150-grain bullets at full-power.ĭecreasing bullet weight further dampens recoil. Those reduced-propellant charges soften recoil a third and two-thirds compared to the. 300 WSM into a pleasant approximation of the. The same bullet weight at 2,400 fps, from 33 grains of SR4759, turns the.
300 WSM propels 150-grain bullets to 2,800 fps to imitate the. level requires switching to relatively fast-burning propellants.
300 WSM burns only three to four additional grains of propellant to duplicate the velocity of the 30-’06 Sprg.
#IMR RELOADING DATA 300 WSM MANUALS#
A check of handloading manuals shows the. 300 WSM adapts well to reduced-velocity loads. But, after more than a few shots, the fatigue from 70-some grains of propellant does tend to accumulate, which makes practice less than perfect.
#IMR RELOADING DATA 300 WSM PLUS#
300 WSM won’t unravel the double knot in your boot laces, plus the SuperCell recoil pad on the Remington soaks up quite a bit of the. 300 WSM I used a Remington Model 700 CDL-SF, which weighed an even 8 pounds with a Leupold VX-3 4.5-14X 40 mm scope mounted in two-piece steel bases and rings. Through those years, too, new propellants have been introduced specifically for short magnum cartridges, making the. 300 Winchester Short Magnum (WSM) was introduced in 2001 and has become an extremely popular magnum cartridge because big-game hunters and handloaders have discovered it works well with a variety of propellants and bullets to provide good accuracy and high velocity for the amount of propellant burned.
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