First and foremost a hearty thank you to those who have helped me progress and enjoy a wonderful double. The Browning Continental, .30-06 O/U. As aforementioned the regulation changed when claw mounts were added to aid the aging eyes. The former factory "regulation" was for 150 grain bullets, and now the rifle prefers 200 grain offerings. The concept of shooting the rifle without the scope was the most pleasantly startling as the finest 6 shot - 3 lower and 3 upper grouping ever was obtained, at 50 yards (3/4"). The 220, and 250 grain offerings shot with increasing dispersal, but totally in the vertical plane, and were loaded to be slow intentionally so there is some hope that the 220's will be able to come together (Pun Intended)with a little more fire under their arse's... This was a most enjoyable lesson for me and I thank the forum members who took the trouble to answer.

Good to hear that the rifle still shoots great without the scope. That is outstanding double rifle accuracy with irons. Sounds like a keeper.

With the scope on, are the 220s and 250s still crossing or are they diverging (top high and bottom low)?

Glad the forum was of help. AR is a fine resource.
-----------------------
"Serious rifles have two barrels, everything else just burns gunpowder."

I also will make one recommondation. Browning did not seal the wood on these very good. After a couple of times in the weather with mine, I noticed some wood swelling.
So remove the forearm and buttstock and reseal the inleting.
My 30-06 also has a problem shooting, however it is not due to the ammo. It only shoots spikes. Have shot two deer and one mountain goat with mine.
Wish you luck with yours.

First, 400... The neither the 220's or the 250's are crossing, the 220's are vertical despersion of about 3.5 inches, and the 250's about 5 inches. As per the idea of slowing barrel time, I loaded these to minimums. So I think at least the 220's will regulate within usable accuracy parameters. WOW wouldn't that be nice!

Now Mr. Wisner, Would you believe a double on spikes and a Black bear, Kudu, Impala, Bushbuck, also some foul Guineas. The 20 gauge portion of course. Remarkedly, this particular rifle is one of the most stable for zero which I own. It goes in the eternity box with me. What more can I say. Many thanks for sharing, and God bless AR

I realize your rifle ins an O/U, but I have an 8X60RS side-by-side for which I have found a unique combination. If I shoot a 150 grain bullet at 2800 from the left barrel, and a 175 grain at 2740 from the right barrel, they are perfectly aligned vertically, with the 175-grain almost exactly 2" above the 150 grain. So I zero for the 150 to strike 1" high @ 100, and the 175 is dead on @ 200!! Neither bullet strikes more than 3" high between 50 and 200 yards, which is as far as I would shoot at anything with it.