Re: Rem700 sps-acc .308 help
Hang on while I get my panties out of my ass...."pop" ah that's better, whew six days of worrying.....
Thanks for the info, very helpful.
Its your cans, two of the highest pressure cans out there. The initial chamber of both of those cans tries to extinguish the fire ball in the first chamber. Peak heat....red friggin' hot. That also explains why you have crap building up in your can. Those two cans do not purge. George worked for Lynn for a good number of years. The HTG can does not have traditional baffles, but two core levels, the the debris exits the central core and literally lays into the "void" the space between the perf core and the actual envelope. Joe's SWR design came from KAC, now Joe didn't like the nasty welds and flat baffles. Joe's SWR are more refined but the cans are still high pressure. If you look at a low pressure can, around the first chamber you will notice there are many holes to allow gas to move forward, many. Gas doesn't hit that system and bounce back with propellant. It moves forward. What you have are flat surface in the primary. You get high first chamber sound suppression, but huge pressure and zero purging. Nada. Stuck, done. That high pressure is returning the gas against the muzzle.
Now the powder. Lets talk about TrailBoss. One generates a small quantity of gas with TrailBoss. There is nothing within the chemistry of TrailBoss alone that will allow it to cut steel. If your crown is pitting, it is perhaps what was in your can coming back with high pressure gas. Zero. Its heat and time and gas..that cuts steel. One does not have direct impingement, the super heated gas in the same quantities with subs especially in barrels that long. The same materials that are found in traditional single base products are within TrailBoss. No higher carbon, no metals in the formulation at all. The only thing that Trailboss has more of than anything else is .......air. Low pressure, low velocity loads = TrailBoss. Six years worth of development work by folks like Mike at Hodgdon, all focused on low pressures that would not blow up old guns. With thousands of rounds through cans starting back in the 70's, .308 subs in particular, no similar results as what you see on your barrel.
Did you friend also have the same cans?
