Sounds like you have all my tricks covered lol. The only one would be with your next barrel. Nitrocarborizing PQP processing. That would effecttively double your barrel life at least.
* Skip next paragraph if not interested in me babbling about my nitro experimces.*
We started doing AR barrels and a few bolt gun cut rifling barrels back in 2010ish. It spread quickly after that around when obama was running for first term. There is a good story there btw but thats not for the open net. Lets just say with a certain company there was/is mutiple accounts of revisionist history that seems to go on in the higher end AR industry. Think we were some of the first if not the first to offer them commercially and the bolt and bcgs. On the cut rifle barrels there was no change in accuracy. On the button AR barrels they all shot at least 3/4 moa at least 100-200yds and some 1/2 had one owner send my a range signed group of 5@100 for 0.247" but that was a real hummer of a fluke barrel. If the button barrel has been properly destressed after button draw it should be fine for an accuracy bolt rig. I just would like to do a side by side apples to apples in a precision rig test with button barrels before I put my name on it. The cost at the place we used was $70 per barrel or 30-600ish for a full load which was 100-200 barrels IIRC. The issue is you can only do the same alloys at the same time and certainother limiting specs etc. Thus there is lot more overhead on a imdividual piece job. No different than any type of one off work. It was superior in everyway to chrome lining bore and parkarizing exterior. Huge time and cost savings to boot which so many did not realize and we kept our mouths shut for a VERY long time. LOL. $15-$20 per barrel for CL and Parker plus lots of prep time pre and post operations. If you want a quailty Cl the be accurate there is work to do post op. Nitro PQP $2-$3 per barrel 1/10 total pre post work and 1 mil x more exterior finish than park and 2-3x barrel life with much much easier cleaning and lower peak pressure for give vel.
—————————-
Happy this round is working out well for prs and likely would in the ss form work great for f class open 600 & 1k. Working on my getting my parts together for my 6.5 SS. It will be one of a kind I am fairly certain.
Rich
I may be hitting you up for info on your smith you use to make a few mods and a profile, chamber, and thread job or two. I don't have anyone I know of local. I got a big and little brother build going on. One I guess you could say would be a Mini Short Sherman (I guess MSS or SSM)and its big brother the SS. It fits along your methology of the SS line. We will see. I have got to drop you a line soon. I know I say it alot but I really dig the SS line especially the 6.5. It just perfectly maximizes everything in such a balanced way.
Cheers,
Tim