Now that I got the gun(8&3/8 mod 29) back & tried it with heavy loads(320gr @ 1362) I can say the porting seems to make a considerable difference. There was a two month gap between the last time I shot the gun without porting & now with so I can't say how much difference with a side by side test, but it doesn't "hurt" anymore. Also the loads I shot today did 1362 with the porting, & the loads I shot without porting were only doing 1335 so the difference may be even more noticeable than I realize. So to answer my own question I asked you guys before I sent it off, I'd say it was worthwile.


Vance in AK.

Matthew 6:33
"But seek first the kingdom of God and His righteousness, and all these things shall be added to you."