Mossberg 500, 3" Mag Blends

[rtp8989]

Mossberg 500,  26"bbl,  HeviShot 3"/2/MagBlend(5,6,7)
Temp ~ 65deg,  Humidity ~ 40%

Pic 1: Primos TightWad .660" - 165 in 10",  166 in 20"


Pic 2: Primos TightWad .660" - 161 in 10",  147 in 20"

[rtp8989]

Pic 3: H.S. Strut Undertaker XT .675" - 160 in 10",  147 in 20"

Pic 4: H.S. Strut Undertaker XT .675" - 110 in 10",  161 in 20"

Hi guys, fairly new to the forum, but have been an outside observer for a long time.  These patterns are following my first deep clean.  I plan to polish the barrel sometime in the near future and see how it improves upon these.  Now I have a questions for you guys... between shots one, two, and three I swabbed out with a patch over brush.  I forgot to swab before the 4th and final shot with the Undertaker.  Would this account for the 50 pellet drop in my 10" circle for the last shot? 
Thanks

[DirtNap647]

 

[surehuntsalot]

nothing wrong with any of those #'s

[lowoctane]

Some guns pattern better with clean bores, some do not. Apparently yours prefers a clean bore. Those are some very impressive patterns! Very consistent numbers. I'd be happy with it!

[trkehunr93]

   Looks good!

[Twowithone]

That will put a hurtin on a gobbler for sure.