Shooters World SW4350 Smokeless Powder 8 Lb is an excellent extruded powder. SW4350 Smokeless Powder is a great choice for heavier bullets in .243 Remington, 6.5mm Creedmoor, and 300 Winchester Magnum. The burn rate is slightly slower than H4350 and similar to IMR 4350; however, superior accuracy was noted when tested against H4350 in the 6.5 Creedmoor.
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