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Winchester Large Rifle Primer #8.5-120 1,000-Count


Winchester Large Rifle primers deliver exceptional performance. Each box contains 1000 8.5-120 non-corrosive primers. Stock up for the best price online from us!

Winchester Large Rifle Primer

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Winchester Large Rifle Primer

Non-corrosive, all weather primers deliver fast, dependable ignition under any shooting condition. Winchester works to make sure all primers are reliable, instant and precise. In Winchester testing labs, primers are constantly and rigorously tested for consistency and sensitivity at temperatures and conditions far beyond the range of normal usage. Winchester guarantees better sensitivity for more positive firing in all guns, carefully-controlled weights of primer mixtures, consistency in size and quality, precise measurements and tolerances for anvil heights and stability in extremes of temperatures and humidity. Primer #8 1/2-120

Large Rifle Primer Specifications

  • Model: #8 1/2
  • Size: Large
  • Gun Type: Rifle
  • Quantity: 10 Boxes of 100 Primer

The next major leap in ignition technology was the invention of the chemical primer, or “cap”, and the mechanism which used it, called the “caplock”. Percussion ignition was invented by Scottish clergyman Rev. Alexander John Forsyth in 1807 but needed further refinements before it was gradually accepted in the 1820s to 1830s. By the middle of the 19th century, the percussion or caplock system was well established. It was adopted by both sides in the American Civil War, as it was simpler and more reliable than the flintlock. The main reason the caplock was so quickly adopted was its similarity to the flintlock and the ease of converting older arms to use percussion-cap ignition; usually, the same lock and barrel could be used with minor changes. The flashpan and frizzen were removed and replaced by a small, hollow horizontal cylinder (drum) screwed into the bored-out and tapped flash hole and carrying a “nipple” over which the cap could be fitted. A “hammer” which also had half-cock (for loading and applying the cap) and full-cock positions replaced the cock. When released by pulling the trigger, the hammer would strike the cap, crushing it against the nipple.Winchester Large Rifle Primer


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