How do


Just come back from a morning on the range with the double 375

Now interestingly enough at 50 metres and 100 metres the right hand barrel is shooting to the left by about 4 inches and the lest barrel is shooting to the right by about 4 inches.

what's the crack, why is my rifle doing this, am I mad, am I seeing things? Thankfully not me thinks but I am definitely puzzled.

Do I need an urgent appointment with a gunsmith and if so who would I need to see here in the UK.?

Would it be best to try and get it back to the manufacturer?

it would sound like you need a bit hotter load which should bring them closer together

No, if the barrels are crossing, there is too little barrel time, meaning velocity is too high/ bullet weight is too low. You need lower velocity and/or a heavier bullet. Did you shoot with 270 or 300 grain?

Also, how did you rest the rifle? An improper rest can cause this. Use a rest only up forward. Hold the barrels in the forward hand and rest only the back of the hand on the rest. Do not use a rear rest. I usually rest my elbows lightly on the top of the bench, but that's all.
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"Serious rifles have two barrels, everything else just burns gunpowder."

quote:

Originally posted by Gerry Merry:
How do


Just come back from a morning on the range with the double 375

Now interestingly enough at 50 metres and 100 metres the right hand barrel is shooting to the left by about 4 inches and the lest barrel is shooting to the right by about 4 inches.

what's the crack, why is my rifle doing this, am I mad, am I seeing things? Thankfully not me thinks but I am definitely puzzled.

Do I need an urgent appointment with a gunsmith and if so who would I need to see here in the UK.?

Would it be best to try and get it back to the manufacturer?

400 you are correct, my post was another brain fart from an "OLDTIMERS" sufferer! Got it backwards AGAIN

Keep us advised of your progress!

400 Nitro

You are absolutely correct.

Thanks RD.

Guys, I know this is confusing, but we've been over this endlessly. Crossfiring is caused by too much velocity which results in too little recoil movement while the bullet is still in the bore. Shooting wide is caused by the opposite.

A .375 double crossing like this sounds kinda like a 270 grain load in a rifle regulated for 300 grain.
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"Serious rifles have two barrels, everything else just burns gunpowder."

Gerry Merry, are you sure they are crossfiring, could you have it backwards. If you were crossing 4 in at 50 yds the crossing would be double that at 100. sounds like you are shooting paralell, if thats the case you would want to speed it up.

Thanks for the advice so far.

To enlighten you further. The Ammunition was federal 300gn power shock. Each barrel was gouping beautifully and oh yes it's definitely crossover, just me not explaining myself particularly well. What I failed to mention was the crossaver was 2 inches at 50 metres.

Well, it doesn't like that load. Try another 300 grain load. Since you're in Blighty, try Kynoch. Also, you might try a different bullet shape. Bearing surface can play a role. One of mine regulates fine with round nose, but crosses with spitzers of the same weight unless they're seated way out on the lands.
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"Serious rifles have two barrels, everything else just burns gunpowder."

400 Nitro

You have a pm

Got it backwards folks, corrected my origenal post!

Is just me or has any one else noticed that Federal ammo.(including shot gun ammo)seems to be loaded a little hotter than most.

Are we just assuming this gun was regulated correctly with some load at some point or do we know it?

For the money one would hope guns are regulated correctly for at least one common load, but unfortunately in reality that isn't always the case.

Kyler

You can always ask the folks you bought the DR from and find out what ammunition they used in regulation.

I thought when a double was "regulated" it was done in factory using a specific load and I thought @ 80 yds?
Get on to Chapuis gerry and find out what distance and load it was regulated with,failing that, get rid of it and buy my 458,1 barrel,1 bolt and 6 rds !

quote:

Originally posted by john.d.m:
I thought when a double was "regulated" it was done in factory using a specific load and I thought @ 80 yds?
Get on to Chapuis gerry and find out what distance and load it was regulated with,failing that, get rid of it and buy my 458,1 barrel,1 bolt and 6 rds !

Here again, gentlemen, we have the mistaken idea that all double rifle are regulated to cross fire at some distance, and that is where the rifle is regulated to shoot! This is not true! The barrels are regulated to shoot side by side,for a particular load, no matter the distance.

The "distance regulation" has only to do with the sights. Once the rifle is properly regulated the final sights are regulated by fileing to hit dead on at a given distance. With a standing blade, usually, cut for 50 yds for chamberings above .400, and at 100 yds for chamberings smaller than .400. If the rifle is equipt with flip-ups for longer range, the rifle with a proper load for the barrel regulation will shoot to those sights at all ranges, that is if the shooter can shoot, but the rifle does not cross, at any range. If it does it's back to the loading table, because the load in not right!

When a barrel set is regulated by the barrel regulator, the center of the group of each barrel will be at the same elevation as the other, and the center of that barrel's group will be half the distance between the center of the bores of both barrels,or as close as is possible, on it's own side of the aiming point on the target, at all ranges the sights are cut for!

This is a very common misconception, and it isn't any wonder, because many of the suposidly knowledgable gun writers have been telling the readers this for years. This misconception, and some others, is what fosters the mistaken idea that double rifles are only good at less than 100 yds. FOLKS, it simply is not true!

quote:

This misconception, and some others, is what fosters the mistaken idea that double rifles are only good at less than 100 yds. FOLKS, it simply is not true!

All right Mac, that's enough out of you.

Stop telling people that Doubles are accurate beyond 50 yards. Pretty soon every Tom, Dick and Harry will want to hunt with one for everything in N. America.

Then all those nice small bores will become as expensive as the big bores and the party will be over.

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"Serious rifles have two barrels, everything else just burns gunpowder."

ummmm,errrr I stand corrected.
I am right that Gerry should sell it and buy my 458, a proper rifle.

quote:

Originally posted by Mickey1:

quote:

This misconception, and some others, is what fosters the mistaken idea that double rifles are only good at less than 100 yds. FOLKS, it simply is not true!

All right Mac, that's enough out of you.

Stop telling people that Doubles are accurate beyond 50 yards. Pretty soon every Tom, Dick and Harry will want to hunt with one for everything in N. America.

Then all those nice small bores will become as expensive as the big bores and the party will be over.

oops!..........I'm gone!

Got a contact to phone here in the UK tomorrow, will keep you updated.