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<blockquote data-quote="SDMF" data-source="post: 488676" data-attributes="member: 412">WTF are you talking about regarding &quot;breech-block&quot;?&nbsp; Were you shooting a converted Trapdoor Springfield or Zulu Snider?&nbsp; Break action shotguns don't have a &quot;Breech Block&quot;.&nbsp; They have a breech face, locking lug near the bottom either screwed or soldered to the bbl set or machined into the bbl block, recesses/trunnions (on the sides between the bbls on a Beretta), and a locking lug, cross-pin usually near the top, or top-lock.Most non-idjuts would go to an oversized locking lug rather than hammer on the locking-lug recesses.&nbsp; In the case of some of the target specific O/U's, they'd replace the lug abutment trunnions (Beretta 682 et. al) and possibly add an oversized or replace w/new OEM locking lug.&nbsp; Or in the case of Krieghoff, Rem 3200, Valmet/Tikka/Savage the top-lock.Some of the AL framed O/U's have a steel insert press-fit into a dovetail on the breech face but typically that's on field guns that won't see the number of rounds which would require replacement of the steel face.I suppose a hinge-pin could wear if one were lazy w/the grease, that still ain't a &quot;Breech Block&quot;.Regarding a Semii-Auto.&nbsp; No thing at all to replace the locking lug on the bolt, or the whole bolt, and/or the bbl if the locking-lug's mating surface is no longer viable.&nbsp; It's about a 10Min job to replace a bolt-buffer @ the back of the receiver.&nbsp; Action bars are about a 30Sec fix.&nbsp; Recoil return springs/housings anywhere from 30-sec to 30Min depending on if you have to remove the butt-stock or just the forearm and action bar to replace.&nbsp; Gas pistons are a 30-sec swap, trigger groups, &lt;2-min.&nbsp; If you're trying to be &quot;thrifty&quot; and just replace the hammer and springs in a trigger group it might take 45min-1hr to dis-assemble/re-assemble.&nbsp; A semi-auto is every bit as &quot;rebuildable&quot; as any fixed-breech break action shotgun.</blockquote>

[QUOTE="SDMF, post: 488676, member: 412"] WTF are you talking about regarding "breech-block"? Were you shooting a converted Trapdoor Springfield or Zulu Snider? Break action shotguns don't have a "Breech Block". They have a breech face, locking lug near the bottom either screwed or soldered to the bbl set or machined into the bbl block, recesses/trunnions (on the sides between the bbls on a Beretta), and a locking lug, cross-pin usually near the top, or top-lock. Most non-idjuts would go to an oversized locking lug rather than hammer on the locking-lug recesses. In the case of some of the target specific O/U's, they'd replace the lug abutment trunnions (Beretta 682 et. al) and possibly add an oversized or replace w/new OEM locking lug. Or in the case of Krieghoff, Rem 3200, Valmet/Tikka/Savage the top-lock. Some of the AL framed O/U's have a steel insert press-fit into a dovetail on the breech face but typically that's on field guns that won't see the number of rounds which would require replacement of the steel face. I suppose a hinge-pin could wear if one were lazy w/the grease, that still ain't a "Breech Block". Regarding a Semii-Auto. No thing at all to replace the locking lug on the bolt, or the whole bolt, and/or the bbl if the locking-lug's mating surface is no longer viable. It's about a 10Min job to replace a bolt-buffer @ the back of the receiver. Action bars are about a 30Sec fix. Recoil return springs/housings anywhere from 30-sec to 30Min depending on if you have to remove the butt-stock or just the forearm and action bar to replace. Gas pistons are a 30-sec swap, trigger groups, <2-min. If you're trying to be "thrifty" and just replace the hammer and springs in a trigger group it might take 45min-1hr to dis-assemble/re-assemble. A semi-auto is every bit as "rebuildable" as any fixed-breech break action shotgun. [/QUOTE]

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