I'm relatively new to stalking so bear with me if the following is b obvious. I have a Sauer 202 Euro in .243. I previously had it nicely zeroed at 100 paces (yet to buy the rangefinder) with a ASE Ultra moderator giving an inch group. The results below were from today's zeroing as the ASE wasn't for sale after all and I bought a Wildcat 8.
Sauer 202 Euro .243, Wildcat Moderator, 100gr Federal.
Red: initial group
Green: at maximum elevation for sight (S&B 3-12 x50)
Pink: as above.
Blue: 80gr Nosler (home load)
Red: No Moderator, 100gr Federal
Sako 85 .308 T8 Moderator
Red: 150gr home loads
Blue: without moderator (two shots touching – gone a bit pink!)
Sauer with T8 moderator, 100gr Federal.
Change in POI compared to no moderator
Wildcat on Sauer = 6.5 inches lower
T8 on Sauer = 3 inches lower
No change in POI with Sako 308 and T8
Wildcat weighs 860g, T8 750g. (The ASE wieghed, from memory slightly more than the T8).
I can understand the moderator making a difference, but this seems excessive. Given that there was no change with my Sako, is this a problem other Sauer users have encountered?