After seeing the little VC 375 flanged at DSC I could see myself with a gun like this that would easily find its way in your hands on safari or in NA hunting. I have been a big fan of the belted 375 and with the Barnes 270 TSX it has quickly become an all around favorite. I shot enough springbuck both close in and out to 450 yards that I know it performs at high and low velocity. The only dangerous game I have used it on was a lion and it was a perfect combo. My only problem I have is there is not a factory load for the 375 flange to have it regulated with.
Has anyone with a rifle regulated for a 300 or 350 grain bullet tried the 270 TSX in their 375 flange double rifles? If so by how much did the POI move for each barrel? I assume you might get around 200 more FPS and the POI would be closer.
There are probably too many factors to try this but I am wondering if you could come up with an educated guess on how far apart to print the POI in regards to regulation with a 350 or 300 grain bullet that might be close enough to use for the 270 grain TSX?

quote:

Originally posted by Blaserguy:
My only problem I have is there is not a factory load for the 375 flange to have it regulated with.

Not sure I understand this.

Kynoch and Norma both have factory loads. My V-C 375 Flanged was regulated with Kynoch 300g but shot the Norma 350s and my handloads with 250g TSX as well as CEB solids and Non-Cons each with aplomb and quite accurately.

A Hungarian-born friend recently had a double rifle built for him in Hungary, chambered in .375 Flanged Magnum. When he got it home here he found that it was crossing by 6" at 50 yards. I have just finished re-regulating it with his 250 grain A-frame load. The last group that I fired with it, the left barrel was one ragged hole and the composite group was 1" wide by 2 1/4" high. The 300 grainers shoot very nearly as well.

quote:

Originally posted by CCMDoc:

quote:

Originally posted by Blaserguy:
My only problem I have is there is not a factory load for the 375 flange to have it regulated with.

Not sure I understand this.

Kynoch and Norma both have factory loads. My V-C 375 Flanged was regulated with Kynoch 300g but shot the Norma 350s and my handloads with 250g TSX as well as CEB solids and Non-Cons each with aplomb and quite accurately.

Thanks for the reply. I would prefer to use the 270 TSX bullet but it is not available as a factory load to request for regulation. When you went with the other bullet weights were the speeds inline with what you would normally expect?

It's been my experience that with patience and willingness to experiment with powder, weights and seating depths, you can get most bullets to shoot well. Can't recall velocities off the top of my head but I believe ME was similar across the board.

quote:

Originally posted by CCMDoc:
It's been my experience that with patience and willingness to experiment with powder, weights and seating depths, you can get most bullets to shoot well. Can't recall velocities off the top of my head but I believe ME was similar across the board.

Thanks again for the input. I may just go ahead and give it a go.

Can one buy Norma 375 Flanged here in the US and if so where? thanks

While I have not looked for loaded ammo in that caliber, Captech International shows that they have Jamison .375 flanged brass in stock. Don't know if that helps or not.

quote:

Originally posted by jorge:
Can one buy Norma 375 Flanged here in the US and if so where? thanks

I cannot confirm it as fact but I was told that Norma has dropped the 350 gr loading and only offers the 300 gr now. With that said Mid South shooters supply shows both in stock.
Nosler is also jumping into the 375 Flanged market as well

I have a Chapuis .375 flanged and also had it regulated with 300 grain Kynoch ammo. I then bought a five pack of Kynoch ammo and shot it over the chronograph and it was running at 2350 fps. Then I just got load data from Graeme Wright's book that was spot on. Regulation was a breeze.

A good double will usually shoot a number of loads within acceptable groups, say within 5 inches or better at 50 or 75 yards.

The problem is the POI may be different and can be some dramatic at times, but that has nothing to do with "regulation", that is simply a sight in problem and can be handled by using adjustable sights of some kind such as a scope or adjustable peep or whatever...

I have my 375 flanged shooting consistent 3" groups at 100 yards. Half the time under 2" with swift A-Frames. TSX almost as good.

Have not tried the 270 TSX but i plan to. However it will still be some months before I do. Too much on my plate with getting ready for a hunt and other "life" stuff. Will post my results. I will say my 375 flanged is really powder sensitive. I have settled on RL 17. Tried 5 others to no avail. Then luckily I had a couple of 5 pound jugs of RL 17 I forgot about and tried that and it all came together very easily. Was very frustrating getting to that point though. I shot at least 400 rounds before I tried the RL17 with very little success getting the gun to regulate.