Assertion: pump shotgun | /r/HasProperty | based in small part
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text: In response, Winchester shifted reliance away from John Browning designs when it adopted a shotgun design of Thomas Crossley Johnson for the new Winchester Model 1911 SL, (Johnson had to work around Browning's patents of what became the Auto-5) and the new Model 1912 pump shotgun, which was based in small part upon design features of the earlier Browning-designed Winchester Model 1897 shotgun.