Today I was about to walk out with the Perugini & Visini double in .470 NE...

One thing that I am a little "curious" about is how light it is, weiging in at less than 9.5lb(4.25kg) it must really kick hard, around 83footlbs, correct?

The gun is still there, so it doesn't really matter much...

That is a bit light, but a 13 oz mercury recoil reducer in the stock with a nice recoil pad will make it very managable.

No Mercury Reducers in the Stock of Double Rifles.

It will screw up the regulation and make it damn hard to ever compensate for. Use lead and epoxy and then keep your fingers crossed on the regulation.

My mistake. I didn't realize that a recoil reducer would alter regulation in a double. They must be fickle buggars.

Kreighoff offers (recomends) a mercury tube in it's 470 and 500 NE's. Since it is an option, are we talking before or after factory regulation?

Jim

It would have to be before regulation. With the mercury sloshing around in the back the rifle would recoil differently. The weight moving would make for difficult regulation. Is mercury effected by temperature?

Do to an eye problem, my DO suggested any way to reduce recoil would be a good Idea, I added a mercury tube to my Kreighoff 470 NE. Will be testing in a few days, will report on what changes it made.

Jim

A buddy of mine Ted, has recoil reducers in his Kreighoff 500/416 and they don't seem to have effected to regulation at all. Now it swings like a fence post, but still shoot good.

As far as a 9.5lb rifle and a 470 goes, I'd call the recoil on that a bit BRISK.

Rusty
We band of brothers!

Mercury is not affected by any temperature that a human will encounter.

other than spliting my stock, 89ft/lbs is not bad, from a SLOW moving bullet....

a 470, 500 at 2150, should be fine, if it fit you.

jeffe

This is what Kriegoff has to say about Mercury recoil reducers.

"For CLASSIC "Big Fives" in .458 Winchester Magnum, .470 Nitro Express and .500 Nitro Express 3", the installation of a BreaKO recoil reducer in the butt stock is recommended. In addition to a noticeable reduction in recoil, the weightof the BreaKO unit offsets the added weight of the big bore barrel and brings the CLASSIC "Big Five" into perfect balance."

They bring up a point that I have always felt was a big benefit of the Mercury recoil reducer. It helps bring the gun into balance. They don't say that it is to be added before regulation or not. I've e-mailed them to get clarification.

This was my e-mail.

"Dear Sirs,

Can I add a Breako Recoil Reducer at anytime or will it affect regulation on
your Big Game Rifles?

Thank you,

Kyle"

This was Krieghoff's reply.

"Thank you for your inquiry. A Breako Recoil Reducer can be added at anytime.

Janine Snyder"

Express,

It looks like you are good to go with my original post if you want to add a Mercury Recoil Reducer.

Why is it that;

The adding of a recoil pad that lengthens the stock can effect regulation.

An additional 25fps in velocity can effect regulation.

Adding a scope can effect regulation.

Adding a pound of shifting mercury will not effect regulation?

Mickey, tell me again. Adding a recoil pad can affect regulation? I had no idea.

While all of the things Mickey1 talks about may effect regulation, to what degree is an other question.

I would suggest that most factory ammunition will fluctuate more than �25fps. We all will hold a rifle slighly different. Since I have a 15 1/2 " pull, I add a 1/2" spacer under recoil pad. I added a BreakO.

Loading a 500 gr. Woodleigh at 2085 FPS still matches the factory target at 50 yards.

Bottom line IMHO, Add the BreakO.

Jim

Damn- Here I went and added Three Mercury recoil reducers to my 470 NE and a leather covered F990 Pad. Darn thing seems to be regulated just the same as before. Just kicks about half as hard! Wonder what I did wrong?-Rob

Mickey1, you believe too many ol' wives tales. None of those things will REALLY effect regulation. Most ammunition varies more than 25 fps.

Two things that will REALLY effect regulation are:

1.) Singificant change in the operating pressure of the ammunition as compared to the regulation load's pressure. In other words. If the regulation load was 39000 psi +/- 1500 psi and one was to shoot loads in the 30000 range or up in the 50000 range the regulation would go to hell. Might loosen the rifle up quickly with high pressure loads too!

2.) Significant force applied to the forearm of the rifle. Lean on the forearm during firing and the POI will change, ALOT.

Almost everything else is mystical BS.

Axel

[ 04-03-2003, 21:57: Message edited by: Axel ]

Mercury reducers, recoil pads will not change anything on a double rifle..A bunch of mercury will ruin the gun for quick handling balance and that is the beauty of a double...Some doubles are touchy but I have nerver seen one change with stock work of anykind.

I do feel that anyone that needs any kind of recoil reducing gadget in a double is simply over gunned, and should drop back on caliber. I suggest a 450-400, 9.3x74 or 375 Rimmed.