Changing a chamber for ammunition

[TRSR8]

So if I rechamber my Turbo with a Benz chamber it will shoot as well as with a (current "hot" choice of the experts) chamber. Perhaps if you compare the two leading chamber specifications there my not be a huge difference - But there is a difference.

Discussion has been primarily about "match'chambers, but as Tony has explained....lot's of other variables.

 

[1Merlin]

Read my post. Your sounding like a politician. Just taking part of a subject and repeating it out of context.
Benz chamber vs either of the two leading chambers.

 

[Hi-NV Shooter]

Your recall may be an issue. You haven't seen all of them. For example, a Turbo is one of the rifles you've overlooked.

Lee, your question is irrelevant. It's not hard to understand that "the two leading chambers" (which is how Merlin originally put it) will not be produce results very different from each other. No one should think one very good chamber will produce very different results from another very good chamber.

But then you go on to say the following.


This is exactly my point when I said "Small differences can be hard to recognize and know when they are because of a different chamber, especially when shooting outdoors."

If you took the time to read a little more carefully instead of rushing to be argumentative your post would have been unnecessary.


Do you think you can readily see the difference on target resulting from the differences between the two "leading chambers"? If the target results were so different, there wouldn't be two leading chambers, only one because it would be head and shoulders above all others. Which chamber would that be?

My apologies since you own a custom chambered rifle. You must be speaking from experience and are one of the many shooters who wouldn’t see it on the target. Because of a chamber difference
Thanks for clearing that up

Lee

 

[Tony K Harper]

Read my post. Your sounding like a politician. Just taking part of a subject and repeating it out of context.
Benz chamber vs either of the two leading chambers.

1Merlin:
Have you ever cut any rimfire chambers?
Have you cut a Benz chamber?
Do you know why the Benz chamber was created?
If so, please share your experience. It is very difficult to provide a good answer to a very general question without knowing the knowledge and understanding of the person you are trying to answer.
I don’t know you and apparently you don’t know me so let level up and perhaps I can give you a direct answer to your chamber question.


TKH

 

[D_Dial]

I don’t even know what a chamber is….. but I love a good argument!! Hash it out boys!

 

[1Merlin]

1Merlin:
Have you ever cut any rimfire chambers?
Have you cut a Benz chamber?
Do you know why the Benz chamber was created?
If so, please share your experience. It is very difficult to provide a good answer to a very general question without knowing the knowledge and understanding of the person you are trying to answer.
I don’t know you and apparently you don’t know me so let level up and perhaps I can give you a direct answer to your chamber question.


TKH

Actually this is/was not directed at you Tony.

 

[1Merlin]

Do you think you can readily see the difference on target resulting from the differences between the two "leading chambers"? If the target results were so different, there wouldn't be two leading chambers, only one because it would be head and shoulders above all others. Which chamber would that be?

Here is my post copied and pasted for your review. Please note that I state Benz vs either of the two leading competition chambers.

"So if I rechamber my Turbo with a Benz chamber it will shoot as well as with a (current "hot" choice of the experts) chamber. Perhaps if you compare the two leading chamber specifications there my not be a huge difference - But there is a difference."

 

[Frankr]

I can tell you my experience. 2500X chambered for Lapua. Yea. I mean why not.
5 lots of Lapua latter and no real joy. Shot some Eley Match. 3 lots shot very good. Shot a few matches did ok shooting the Eley. Got a new barrel. Completely different barrel and completely different chamber. But with the going to shoot Lapua address. I lucked into some CX that looks like it is going to shoot for me. So two completely different barrel configurations and two completely different chambers. Both shoot the same lots of Eley I shot last year equally as well and both are shooting this new lot of CX equally as well. So while I do still believe there can be specific chambers that could shoot better possibly. It nice to think about it. But it’s been a real eye opener. So I do listen to the guys who have been there and done that. I really do.

 

[StuNY]

Guys keep in mind that the actual "Chamber" is not just the design of the reamer. It is how the reamer is used and what is done after it is used. The guns I build all shoot Lapua and Eley very well with the same reamer and chambering technique that Gordon Eck taught me.
I find the execution of the chamber has a very large impact on accuracy, having tried and tested many different approaches before learning from "the master" : )
Stuart

 

[Tony K Harper]

Guys keep in mind that the actual "Chamber" is not just the design of the reamer. It is how the reamer is used and what is done after it is used. The guns I build all shoot Lapua and Eley very well with the same reamer and chambering technique that Gordon Eck taught me.
I find the execution of the chamber has a very large impact on accuracy, having tried and tested many different approaches before learning from "the master" : )
Stuart

StuNY,

It is very much like other things it isn't what you have it is how you use it. Just ask her.
TKH

 

[TRSR8]

Guys keep in mind that the actual "Chamber" is not just the design of the reamer. It is how the reamer is used and what is done after it is used. The guns I build all shoot Lapua and Eley very well with the same reamer and chambering technique that Gordon Eck taught me.
I find the execution of the chamber has a very large impact on accuracy, having tried and tested many different approaches before learning from "the master" : )
Stuart

BINGO! Lord only knows what % of chambers in all these guns that are less than optimum as far as instillation. Cannot prove it but I’d guess far more important than the exact reamer design on true match reamers.
Over the years, I’ve seen some appalling borescope images. A precise, well cut chamber is a thing of beauty. Even then, with a new chamber, amazing that so many have no clue how to work with them until you get a couple bricks down the pipe.

 

[John1945]

StuNY,

It is very much like other things it isn't what you have it is how you use it. Just ask her.
TKH

What was the tuner setting?

 

[Williwaw]

.... amazing that so many have no clue how to work with them until you get a couple bricks down the pipe.

I'm all ears. Thanks.

 

[PWNolan]

What was the tuner setting?

Mine works well with a wide range of settings. I can take out the dot at will in a variety of positions....er....conditions too

 

[Alex Wheeler]

I have a lot of experiance with different lead angles in centerfire. When I started playing with rimfires I read about the different leads for this ammo or that ammo. At least in cf, the shape of the ogive has a relationship to the lead. As in it "sees" the lead angle. In rf the way many chambers are set up the lead does not see the ogive. Its fully into the bearing surface. So at first thought the different leads for different bullets made no sense to me. Other than a slight start pressure difference. I have been on a 2 degree and have an equal amount of guys on eley and lapua. Have not even tried my 1.5 yet because the 2 has worked so well no one has wanted to yet.

 

[Hi-NV Shooter]

I have a lot of experiance with different lead angles in centerfire. When I started playing with rimfires I read about the different leads for this ammo or that ammo. At least in cf, the shape of the ogive has a relationship to the lead. As in it "sees" the lead angle. In rf the way many chambers are set up the lead does not see the ogive. Its fully into the bearing surface. So at first thought the different leads for different bullets made no sense to me. Other than a slight start pressure difference. I have been on a 2 degree and have an equal amount of guys on eley and lapua. Have not even tried my 1.5 yet because the 2 has worked so well no one has wanted to yet.

Hi Alex,
On your chambering are you setting them up for full engraving? if so, have you tried setting one up for minimum engraving say 0.030-0.040?
logically if any lead set up for full engraving would not see much if any difference. but back off the engraving and from ME there is what I have seen is a much friendlier chamber that will shoot a wider variety of ammo lots. I have shot from Lapua Pistol king to Midas+ and by matching AOL that the barrel likes I been able to shoot some pretty good scores in ARA.
I have an Anschutz that was originally set up for full engraving and then rechambered with 0.030 engraving. same barrel and same smith. the rifle shoots really good.

Lee

 

[Tony K Harper]

Hi Alex,
On your chambering are you setting them up for full engraving? if so, have you tried setting one up for minimum engraving say 0.030-0.040?
logically if any lead set up for full engraving would not see much if any difference. but back off the engraving and from ME there is what I have seen is a much friendlier chamber that will shoot a wider variety of ammo lots. I have shot from Lapua Pistol king to Midas+ and by matching AOL that the barrel likes I been able to shoot some pretty good scores in ARA.
I have an Anschutz that was originally set up for full engraving and then rechambered with 0.030 engraving. same barrel and same smith. the rifle shoots really good.

Lee

I don't want to start a big argument here but let me ask a question.

What is the primary purpose of the leade angle in the first place?

Answer that and it will give you the answer to shallow vs complete. With the exception to a couple of other factors thrown in depending on which you choose.

I'm not trying to make a riddle out of this just avoid arguments. Everyone is free to make their own decision.

TKH

 

[Alex Wheeler]

Hi Alex,
On your chambering are you setting them up for full engraving? if so, have you tried setting one up for minimum engraving say 0.030-0.040?
logically if any lead set up for full engraving would not see much if any difference. but back off the engraving and from ME there is what I have seen is a much friendlier chamber that will shoot a wider variety of ammo lots. I have shot from Lapua Pistol king to Midas+ and by matching AOL that the barrel likes I been able to shoot some pretty good scores in ARA.
I have an Anschutz that was originally set up for full engraving and then rechambered with 0.030 engraving. same barrel and same smith. the rifle shoots really good.

Lee

Yes I have been setting them up for full engraving. Have not experimented with the light engraving. Thanks for the advice.

 

[Alex Wheeler]

I don't want to start a big argument here but let me ask a question.

What is the primary purpose of the leade angle in the first place?

Answer that and it will give you the answer to shallow vs complete. With the exception to a couple of other factors thrown in depending on which you choose.

I'm not trying to make a riddle out of this just avoid arguments. Everyone is free to make their own decision.

TKH

I tried to figure that out in cf. I sent out a bunch of bullets that performed very well in different lead angles for precise measurment. Idea was to correlate the shape of the bullet with a lead angle. It didnt work out that way.

 

[Frankr]

I don't want to start a big argument here but let me ask a question.

What is the primary purpose of the leade angle in the first place?

Answer that and it will give you the answer to shallow vs complete. With the exception to a couple of other factors thrown in depending on which you choose.

I'm not trying to make a riddle out of this just avoid arguments. Everyone is free to make their own decision.

TKH

To start the bullet into the bore without distorting it and sticking it causing a pressure spike.

I would also think if there wasn’t a lead angle the powder burn couldn’t get into the bore and you would get a bad build up right at the edge. Have I ever seen a chamber without a lead angle where the rifling was square off and the end of the freebore. Yes I have. Nobody knows why it was like that. Experimental it was thought. It got rechamberd.