Hello - I'm new to this group and new to double rifles. Have decided on a Chapuis 9.3x74 but prefer to get it with a low-power scope. Should the rifle be regulated at 50 or 100 meters if used with a scope? From what I understand just adding a scope to an unscoped DR can alter regulation.

I recently missed one with a scope and regulated at 100 meters. Looking for another.

Any advice or leads would be appreciated

Thank you

Oxon

By the way, I've been working backward skimming all the posts and I've made it from the end to about page 40! Fantastic wealth of info on this list! What I've learned has helped me enormously when I talk with dealers!

In theory it shouldn't make a difference. A perfectly regulated rifle will shoot a two hole group which looks like a figure 8 laying on its side, with the center to center spread equal to the center to center spread bewteen the bores at the muzzles.

But choose 100 meters. Imperfections in regulation are amplified by distance.

JPK

Thank you - that's sort of what I suspected but a lot of info I've gotten on this thing called "regulation" is a bit murky.

Oxon

If you handload, you can alter powder, powder charge, and bullet weight and just get it to shoot as close together as you can at 100 without crossing.

Have it regulated at 100 Meters.

Tell them you do not want it to "cross" at that distance.

The barrels are regulated to shoot side by side regardless of distance. The regulation in regards to rqnge has only to do with the zero of the standing rear sight, and the front bead. They are filed so that when the sights are on your target at 100 yds, the bullets will hit at 100 yds dead on for elevation, and horrizonaly.

The side by side double rifle when properly regulated never corss at any distance.

The scope you install on the double rifle can sometimes alter regulation,that is true. However
if you mount the scope as low as is possible, and choose the lightest quality scope you can find, the less chance the regulation will suffer.

I have never seen a 9.3X74R double rifle that didn't have it's sights regulated to be dead on at 100 yds.

.............Good shooting and welcome to the DRSS sir!

thank you for the input. I might be wrong but the Chapuis 9.3x74 double is regulated at 50 meters if it leaves the factory without a scope and 100 if it does have a scope. I located one with a scope regulated at 100 meters and I'm gonna get it.

No, I don't load. I do a lot of shotgun shooting but have never loaded. Just what I need, another addiction!

sighted -- where the regulated rifle hits when aimed with a sighting system

regulation - in a perfect world, the bullets should hit either side by side, in an sxs, or above/below in an O/U, the same distance apart as they are at the muzzle ..

in other words, sighting is where the reuglation hits (EFFECTIVELY.. don't tell me that's techincally wrong, i KNOW that)