I like the 725, but the factory chokes are at best inconsistent. Briley made the Browning extended chokes until the DS came around. This is one gun that will definitely benefit from some good aftermarket chokes.

 

SK .740 Im .734 Lm .733 M .729 Im ,724 F ,770.

Ummm, sloppy punctuation and maybe some errors in choke labels there. Perhaps even errors measuring.
Really think you measured your Imp Cyl at 0.734 and wrote that it was Imp Mod.
If that is true that your IC is 0.734 and Light Mod is 0.733, then PERHAPS you have an out-of-spec IC tube.
And if your Full actually measures 0.770, you have a faulty choke tube.

But - Browning has taken a different choke constriction approach with the DS chokes than normal chokes. You may find that there is not a lot of difference in the internal tube tightest constriction measurement in all the lighter chokes (from Skeet through Modified). Others have reported that.

Browning DS Choke tube constrictions in my new 725 Sporting

Good Morning Fellow 725 Owners, I could use your help with some info concerning all comments (good or bad) about the quality of the DS choke system that came with your Sporting Clays gun. I am fully aware of the fact that all of the DS constrictions through out its entire range except for the...

www.shotgunworld.com

good luck, garrisonjoe

 

We discussed the “different” construction theory on factory DS chokes. The opinion of the experts that I know is that was bull. Every aftermarket choke manufacturer makes the DS the same as their other chokes. The factory chokes are simply a poor constructed mess.

 

My mistake SK.740 Improved Cylinder .734. I checked these several times and they are correct. I am not sure why they are so close to each other but there must be a reason. It would be nice to hear from other 725 owners on the DS choke tube.

 

It would be nice to hear from other 725 owners on the DS choke tube.

Well, after reading a lot of information from various sources I decided I didn't want to even try the factory chokes. I ordered a set of Briley tubes before I even had possession of the new 725 Golden Clays.
So I now have a set of new unused Browning DS Chokes...

 

I am surprised to hear so much negative reviews on the browning DS chokes. I find if hard to believe that browning would cut corners on such a nice gun on its choke tubes. Maybe I just got a bad Improve cylinder or Low Mod. Well I decided a while back purchasing some after market choke tubes, so I ordered some Briley's. All I can hope for now is that my scores will go up. Anything to give you that edge LOL.

 

Browning supposedly uses the actual patterns for the designation on their chokes. Their Cylinder Invector Plus choke is +.005.

The Browning chokes in my 28 ga. 525 are slightly different than the Briley chokes and in some choke designations the Brileys pattern better, and in some, the Browning factory chokes do. One of my Briley chokes in the 28 ga. patterns well but shoots high and to the left. All of the Browning chokes are concentric and shoot dead on, but some don't pattern well.

 

The 525 chokes aren’t Invector DS, which we have been discussing. If yours are extended chokes, you are comparing Briley chokes to Briley chokes. The DS isn’t made by Briley. It’s interesting what people perceive to be the truth.

 

I have never miked a choke, fixed or screw-in. I have however patterned my guns with various chokes. I thought the DS chokes were just fine pattern wise. Now, having said that, I have gone to Muellers for their lighter weight and, I believe, less of a tendency to loosen up. Apparently something to do with dissimilar metals. You'll have to ask Mr Mueller.

s/f Steve

 

Measurements on the chokes from my 725 are pretty similar except for the full tube, SK=.738, IC=.734, M=.729, IM=.722, F=.694 I don't have a LM tube. I tried Muller featherlights (1&2) but saw no advantage so I went back to the factory chokes.

 

mi·nu·ti·ae
/məˈno͞oSHēˌē/
plural

• 1.the small, precise, or trivial details of something:"the minutiae of everyday life"

All that matters in the end is the pattern at the yardages that you choose with your preferred load. JMHO

 

When I bought my first 725 it was a trap model o/u. The only choke that measured(by normal standards) as it should was the full choke, all the others were under what a IC would be. I bought some kicks chokes that I needed and never looked back. 2nd 725 was a sporting. Just bought a pair of Pure Gold 15's again never looked back. I like the 725's.

 

I bought all briley chokes because all the Browning chokes measured larger except the full choke.

 

Yep mine were off also. 4 out of 5 basically same choke .

 

Our two 725 sporters shoot great for Sporting clays . IC top and MOD bottom and never change them for sporting clays. Great guns and chokes.

 

Have you mic’d the chokes? Patterned them?

 

Pattern board - find out what % each of your factory DS chokes is producing. If they are doing what you need (regardless of constriction) continue to march. If not, buy after market chokes that make you happy.

 

No need for it,busting 80-90+ clays. Good enough for us.

 

That doesn’t mean the chokes are right. Saying what you shoot doesn’t mean anything.

 

When I shot my 725 Sporting, I thought the chokes broke targets about one designation more open than marked. In other words, the M broke targets like a normal LM would. The IC broke targets like a SK would. But I think they were fine as long as you had enough choke.

Ultimately, I bought a pair of Muller U2s and basically kept them in the gun. With #8s through that U2 I could hit anything that was in my ability range. Anything outside my ability range I used #7.5.