REPRO CHOKE BORE DATA
 

I have never measured the bores or choke constrictions in my Parker Reproduction barrels until recently. I found the results interesting, especially that for the 12 gauge guns with Ic/M markings.
Both 16 gauge barrels are original Krieghoffs!

12G 28" Ic/M Bores .732" R .006" L .010"
12G 26" Ic/M Bores .734" R .006" L .010"
12G 26" Ic/M Bores .734" R .006" L .010"

16G 28" Q1/Q2 Bores .661" R .004" L .006"
16G 28" M/F Bores .661" R .018" L .024"

20G 26" Ic/M Bores .618" R .011" L .015"
20G 26" Ic/M Bores .618" R .011" L .018"

28G 26" Q1/Q2 Bores .552" R .003" L.006"
28G 26" Ic/M Bores .552" R .006" L .016"

Bob Jurewicz

The numbers match my guns exactly for the most part...I will add 410 IC/Mod is .006/.009 and 28ga. M/F is .014/.033 SXS ohio...(-:

Huh :confused: ?

The two 20 ga. IC/M barrels I measured are identical at 13 & 19 mils.

That is why I look for the Q1 and Q2 chokes in the 28GA. Perfect for grouse!!!!

Hello - I measured up my 12 ga. 2-bbl set when I bought it. Here's how the chokes actually measure:

28" M/F: Bore .735 R=.010 (IC) L=.035 (F)
26" IC/M: Bore .735 R=.008 (Skt) L=.012 (IC)

I was told by its previous owner that they are unaltered and the tapers all measure about 2". It is what it is and I actually like the set up. The 28" bbls are great in the dove field and the 26" bbls work well for grouse/woodcock.

Since it wasn't mentioned by the other posters, I will "mention" that the full choke constriction of my 28 gauge Repro is .039. I have no idea how the wad gets out of the barrel. Some day, I will shoot patterns with that barrel and report back. Parker Brothers full choke 28 gauge is .020. It will kill a single quail at 45 yards through brush. Our member Tom Flanigan witnessed that shot. He objected to my attempt to find the bird, so I sent my Wirehair, Eva, into the brush and she came out with the bird.

Good Grief man - that's a full choke measurement on a 12 gauge gun!!

Do you check for bulges after every shot with that gun?

How long is that choke boring?





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My 26" IC/M marked 20ga Bbls are:
IC/Right tube =0.016 or Mod to Imp Mod (0.624 bore)
M/Left tube = 0.018 or Imp Mod (0.619 bore)

The Kreighoff 28" 16ga Bbls I got from Tony are:
Right tube =0.019 or Imp Mod (0.671 bore)


M/Left tube = 0.030 or full+ (0.670 bore)

28 repro choke bore
 

On my 2 barrel 28ga. 26" IC/M .005 and .015; 28" M/F .015 and .035 yes, .035! I've not patterned it yet.