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Remington 870, Carlson's .575, and HWT 7

Started by Jbird22, February 15, 2014, 05:41:57 PM

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Jbird22

Guys who are using this combo, what are you averaging with your setup? I shot mine today (26" bbl) and was slightly disappointed with the result. The gun is like new and has only had about 1 box of dove loads ran through it. The barrel has not been polished but I did run a boresnake through it twice before shooting. Anyway, the end result was 122 hits in a 10" circle at a lasered 40 yds. I was only slightly disappointed because even though the numbers were a little lower than I expected, the overall pattern was even. I plan on polishing the barrel when I get time and trying it again. Hopefully that will bring my total up around 140-150 which would make me happy.

mightyjoeyoung

You're shooting a 20 gauge that'll put up better numbers than most guys' 12 gauges with heavy lead shot loads and you're "slightly disappointed"?!   :o    lol  That being said, my own 21" bbl'd 870 with the .575 Carlson's non-ported tube and HW 7's puts up a consisitent 150-160 avg all day long.  Some guns just won't do what everyone else's gun will but I would first deep clean the bbl and see what that gets you, THEN I would worry about a polish job.  I polish all my shotgun bbl's before I shoot them anyways so though I'm sure it helps, I can't tell you actuall percentages.  What I CAN tell you is that a deep clean on just about ANY bbl WILL help numbers. 
Big Al's "Take-em" Style Silhouette decoys Pro-Staff.

Of all the things I've lost, I miss my mind te most.



Jbird22

Quote from: mightyjoeyoung on February 15, 2014, 05:51:46 PM
You're shooting a 20 gauge that'll put up better numbers than most guys' 12 gauges with heavy lead shot loads and you're "slightly disappointed"?!   :o    lol  That being said, my own 21" bbl'd 870 with the .575 Carlson's non-ported tube and HW 7's puts up a consisitent 150-160 avg all day long.
I'm pleased that it does out perform a lot of 12 ga lead loads but your second sentence is why I'm slightly disappointed. I think it's capable of doing better with a little maintenance though. I'll deep clean and polish then try it again.

SCDieselDawg

Same gun, same choke, HWT 6s went 140s for me. If you want more #s with your setup get a SSX

Palmetto Turk

What do you guys consider a deep clean? And how do you polish a barrel? Tks.

FullChoke



Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read.

RHBUCKMASTER

Let us know if there is a change in pattern after the cleaning and polishing.

surehuntsalot

this is the .575 Carlson in a 21" barrel with #6's

it's not the harvest,it's the chase

Jbird22

Quote from: RHBUCKMASTER on February 22, 2014, 12:53:28 AM
Let us know if there is a change in pattern after the cleaning and polishing.
Well I shot it again today even though the temps were around 10 degrees cooler than when I shot the original pattern. I was hoping to get 130-140 but ended up only getting 113. It would appear that either this choke isn't the right choke for my gun or this isn't a good lot of shells. Either way, the pattern would without a doubt kill at this distance as it was very even and without large gaps but I'd like it to be a little tighter. I might see if I can acquire an SSX but it's not top priority right now as this is currently just a project in the beginning stages.

owlhoot

jbird

What was the temp for both shots?

47 degrees with snow not melted completely around , damp creek bottom, hey it is Feb. in Missouri.
But 40+= warm here now!
With a Winchester 37 A 28" full barrel i shot 104 in the ten and another 133 in the 20" for 237.
With the FED. 7 HWT 3".
My 870 21" with them does around 160 in the 10", but have only tested it on warmer and dryer days.
Same loads , has a RSF choke.
For a 20 with 1 1/2 oz.  This is not disappointing at all.  FYI   330 pellets in the 1 1/2oz with HWT 7's.

Jbird22

The day I got 122 was low-mid 70's with little wind best I recall. Yest (113) was mid 60's with a slight crosswind.

deacon

The shorter barrel 870s shoot the fed 7s better. My 21" bbl 870 averages 170-190 with SSX .550. Did mid 160s with .570 PG (ported). Rem SF .570 was 160s  .555 IC was lowest in 130-140 range. My 21" bbl 1187 20 won't touch the 870 for some reason. I also had higher #s with a dirtier bbl.

Jbird22

Quote from: deacon on February 23, 2014, 08:42:45 PM
The shorter barrel 870s shoot the fed 7s better. My 21" bbl 870 averages 170-190 with SSX .550. Did mid 160s with .570 PG (ported). Rem SF .570 was 160s  .555 IC was lowest in 130-140 range. My 21" bbl 1187 20 won't touch the 870 for some reason. I also had higher #s with a dirtier bbl.
Those are good #'s for sure. Wonder why the shorter barrels seem to shoot better?

grundan

Quote from: JBIRD22 on February 24, 2014, 08:17:26 PM
Quote from: deacon on February 23, 2014, 08:42:45 PM
The shorter barrel 870s shoot the fed 7s better. My 21" bbl 870 averages 170-190 with SSX .550. Did mid 160s with .570 PG (ported). Rem SF .570 was 160s  .555 IC was lowest in 130-140 range. My 21" bbl 1187 20 won't touch the 870 for some reason. I also had higher #s with a dirtier bbl.
Those are good #'s for sure. Wonder why the shorter barrels seem to shoot better?
I have wondered the same thing as well? It has got to do something with the burn time of the powder maybe? I have often wondered after reading a lot on here if a longer barrel has any real benefit.

gophert

I don't think it's the norm for a shorter barrel to out perform a longer barrel on paper.  In the woods it doesn't matter.  Given similar loads and choke performance, the longer barrel will out perform the shorter 99.9% of the time....it's just physics.