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 Accura V2 BH209 Hornady 250 SST Federal209A

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norbush



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Registration date: 2010-12-23

PostSubject: Accura V2 BH209 Hornady 250 SST Federal209A   August 11th 2011, 11:05 pm

Went back to the range today, with advice from this forum and some changes to my setup.

I switched primers from Winchester209 to Federal209A.

I adjusted headspace to .012". Interesting that i could not cock the trigger with Winchester209 in place, but could cock the trigger with the Federal 209A in place. Eyeballing the 2 primers (with 61-year-old eyes Razz ) it seemed that the Federal201A is a bit shorter.

Used 100gr BH209, Hornady 250 SST bullets, Federal209A primers, a target at 100 yards.

First 3-shot group was 2 1/2" on centres. No cleaning between shots (dirty barrel, dirty flash channel)
Second 3-shot group was 2 1/2" on centres. No cleaning between shots (dirty barrel, dirty flash chamber)

NOT happy with these groupings - i have shot better with this gun.

Then I stopped, cleaned everything, ready for a new start.
I used the #32bit to clean out the flash channel, used a needle to clean the flash hole, and dry swabbed the barrel

First 3-shot group was 1 1/2" on centres. Between each shot , I used the #32bit to clean out the flash channel, used a needle to clean the flash hole, and dry swabbed the barrel (clean barrel, clean flash chamber)

Second 3-shot group was 1" on centres. Between each shot , I used the #32bit to clean out the flash channel, used a needle to clean the flash hole, and dry swabbed the barrel (clean barrel, clean flash chamber)

So I'm thinking...
- the Federal209A primers are an improvement over the Winchester209 as I had no "no ignition" problems today.
- the headspace adjustment makes sense.
- my prior setup WITHOUT the headspace adjustment and using Winchester209 left very little soot. However, with the headspace adjustment done and using the Federal209A, the areas around the primer and firing pin were covered with a black soot. Unclear to me if the Federal209A is dirtier than the Winchester 209, or if I need to increase the headspace beyond the .012" to accommodate the shorter Federal209A primer ???
- seems to me that cleaning the bore and flash channel between shots seems to give tighter groupings. I don't mind the extra cleaning time, and as a hunter my primary concern is the first shot only.
- in prior posts i shot sub-1" groups with Pyrodex RS (using same bullets and also with PowerBelt AeroTip 245). Does it make sense to go back to using Pyrodex?
- is it likely that the change from Winchester209 primers to Federal209A primers would have any affect on the size of the groupings?
- ... or are these differences in grouping sizes just old shooter inconsistencies ?? affraid


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CVA Accura V2 (2010)
Bushnell Trophy XLT 250 DOA 3-9x40 Scope --- DuraSight DS411b Medium mounts
Blackhorn 209 (100gr) Powder --- CCI 209M Primers --- Barnes TEZ 290 Projectiles


Last edited by norbush on August 12th 2011, 8:18 am; edited 1 time in total
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FrontierGander
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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 11th 2011, 11:19 pm

Primers changes at times just offer better groups.

When you put a fed primer in a lightly close the action with the break lever pulled back, are you able to see a slight gap between the breech plug and the face of the frame? The black soot is a dead give away that the head space needs more adjustment.


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norbush



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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 11th 2011, 11:29 pm

Thanks FG. I'll do that adjustment and hope to get back to the range on Sunday.

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CVA Accura V2 (2010)
Bushnell Trophy XLT 250 DOA 3-9x40 Scope --- DuraSight DS411b Medium mounts
Blackhorn 209 (100gr) Powder --- CCI 209M Primers --- Barnes TEZ 290 Projectiles
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Muley
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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 12th 2011, 9:01 am

If you decide to go back and try Pyrodex. You don't need a hot primer. It might even hurt. Try the muzzleloader primers. Like the Win 777 primers.

I'm surprised to see you get better accuracy by swabbing. When I first tried Bh powder I compared swabbing every shot to shooting 50 shot with no swabbing. I saw no difference in accuracy.

I did run a drill in the flash channel after 15 shots or so, but i never touched the barrel. Now that Ron modified my breech plug. I don't touch the BP until i'm home. I never get much out of the BP, One quick twist of a drill and it's clean. That's with CCI 209m primers.

As you said though. The first shot is the only important one for hunting, and it's always on a clean barrel. Usually.

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rogo



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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 12th 2011, 11:22 am

I have found that the Fed 209A primers are very dirty in my Accura V1. I noow use Fiocchi #616 209 primers and have no blowback at all.
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cvilorio
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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 12th 2011, 5:25 pm

Norbush, let me make a suggestion to you about the Hornady 250 SST's. Get you some traditions ez-load sabot they are yellow and replace the ones d that come with the SST's with this ones and you will get better and tighter groups than what you are getting now with out having to pull your BP out after every shot and clean, give it a try you will like it.
Carlos
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muzzlenut



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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 13th 2011, 5:56 pm

I use Harvester plain (smooth) sabots with the Hornady SST's. Not the crushed rib sabots. They tightened my groups up a little.
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norbush



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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 15th 2011, 9:57 am

Thanks Carlos and Muzzlenut for suggestions on sabots. I will try to buy these locally and give them a try.

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CVA Accura V2 (2010)
Bushnell Trophy XLT 250 DOA 3-9x40 Scope --- DuraSight DS411b Medium mounts
Blackhorn 209 (100gr) Powder --- CCI 209M Primers --- Barnes TEZ 290 Projectiles
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norbush



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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 15th 2011, 11:22 am

FG - I made several adjustments to the headspace - ending at .016" which was the tightest fitting I could get between the primer and the pin. Moving any further out meant that the trigger would not cock.

Results at the range (using Federal 209A primers) ... much improvement on the blowback. After 18 shots using the .016 headspace, there was less total blowback than i saw from a single shot using the original .010 headspace.

It was a windy day, and my shooting rest is not perfect, so its unclear if this affected shot groupings.

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CVA Accura V2 (2010)
Bushnell Trophy XLT 250 DOA 3-9x40 Scope --- DuraSight DS411b Medium mounts
Blackhorn 209 (100gr) Powder --- CCI 209M Primers --- Barnes TEZ 290 Projectiles
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FrontierGander
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PostSubject: Re: Accura V2 BH209 Hornady 250 SST Federal209A   August 15th 2011, 2:10 pm

good glad to hear that!

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Accura V2 BH209 Hornady 250 SST Federal209A

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