.222 Magnum build

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Re: .222 Magnum build

Post by Am88 » 20 Feb 2020, 9:31 pm

I would however the screws are both damaged from whomever has done this before, I would like it to be around 14 ounces or just at 1lb would do.

I done my first real testing this afternoon, loaded with Sierra game kings 55gr 1365 and 8208. 4 each @ 24.3gr, 24.7gr, 25.1gr, 25.5gr and 25.9gr. not good results, 3 lighter loads all had same POI, hotter 2 POI changed to the right, all groups were around 1.1-1.2" at 100m.

I did have 1 primer failure on one of the 25.9 loads, although no primer flattening is present at all. It just...... Didn't feel right to me, or sound right, also had quite a bit of smoke out the end of the barrel and what felt like poorly burnt powder as it was blowing back in my face, felt gritty. Will try 2206H next
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Re: .222 Magnum build

Post by AZZA'S HJ47 » 20 Feb 2020, 9:41 pm

Supprised to hear that 8208 didnt work for you. It has been my go to powder for both my 222 and 223 yielding better results than with say 2207 or 2206.
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Re: .222 Magnum build

Post by Stix » 20 Feb 2020, 10:14 pm

Am88 wrote:I would however the screws are both damaged from whomever has done this before, I would like it to be around 14 ounces or just at 1lb would do.

I done my first real testing this afternoon, loaded with Sierra game kings 55gr 1365 and 8208. 4 each @ 24.3gr, 24.7gr, 25.1gr, 25.5gr and 25.9gr. not good results, 3 lighter loads all had same POI, hotter 2 POI changed to the right, all groups were around 1.1-1.2" at 100m.

I did have 1 primer failure on one of the 25.9 loads, although no primer flattening is present at all. It just...... Didn't feel right to me, or sound right, also had quite a bit of smoke out the end of the barrel and what felt like poorly burnt powder as it was blowing back in my face, felt gritty. Will try 2206H next


Sharp/sharper, loud & "different" feeling recoil...?...not the normal "push"of a 222...?
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Re: .222 Magnum build

Post by Am88 » 21 Feb 2020, 7:36 am

Sounds silly I know stix :lol: just didn't feel right, and I've never had the issue of the smoke, residue, unburnt powder whatever you want to call it blowing back into my face and making my eyes red (shooting into the wind) there was no sweet smell of gunpowder either after the shots. Trying to explain best I can I probably sound stupid :lol:

A sharp crack is a way to put it yes I guess you could say, the echo sounded a bit funny going past the shed. I had to give it a go AZZA, worst comes to worst apparently 8208 does pretty good in the .30-30 aswell, and I still want to try it in my .222 with 55gr bullets.
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Re: .222 Magnum build

Post by GQshayne » 21 Feb 2020, 8:00 pm

Am88 wrote:I would however the screws are both damaged from whomever has done this before, I would like it to be around 14 ounces or just at 1lb would do.


Hmmmmmmm…………. these screws you are looking at wouldn't happen to be on the side of the trigger would they??? Very small screws that have had the edges bludgeoned into the trigger assembly??

If so, they are done like that from factory, and you do not need to touch them. Trigger weight screw is above the trigger blade, and accessible from the magazine well. Creep does not have a screw adjustment, so you will need to take the trigger apart by driving out the pins in the assembly. Not hard to do really, just proceed with caution. I suggest polishing be done slowly with very fine wet and dry and steel wool.
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Re: .222 Magnum build

Post by Am88 » 21 Feb 2020, 9:20 pm

Yeah mate sorry should have elaborated, I pulled the trigger apart and cleaned, there is a screw on the front of the trigger, and one on the back. The front one has the spring and pin which contacts the trigger for the pull weight, it's all burred and cross threaded with the lock nut locked in place, the one on the back is the over travel I guess you could say? It's the same, got that much flue and Silastic and goop on it, I'm sure I can get screws and lighter springs, but can feel the creep squeezing the trigger
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Re: .222 Magnum build

Post by GQshayne » 21 Feb 2020, 9:32 pm

What you describe is not what I have on either of my rifles. I wonder if you have an aftermarket trigger.
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Re: .222 Magnum build

Post by Am88 » 22 Feb 2020, 8:33 am

Not that I can tell mate, looks like this one here just a screenshot from the net.
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Re: .222 Magnum build

Post by RoginaJack » 22 Feb 2020, 5:27 pm

Haven't read all, so this could be a stupid question. I assume you'r using Mag. primers and I also notice that ADI don't list 8208 powder for the .222Rem Mag.. Great cartridge by the way....
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Re: .222 Magnum build

Post by GQshayne » 23 Feb 2020, 7:36 pm

Am88 wrote:Not that I can tell mate, looks like this one here just a screenshot from the net.



Sorry!!!!! Got your rifles mixed up!!!!!! Forgot it was the Howa. :roll: :unknown:
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Re: .222 Magnum build

Post by Stix » 23 Feb 2020, 9:51 pm

What brass are you using AM88...
I wonder if you are getting some kind of pressure symptoms... :unknown:

Got pics of these targets...?
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Re: .222 Magnum build

Post by Am88 » 24 Feb 2020, 7:32 am

Roginajack, I didn't know they made small rifle magnum primers? Tests have been carried out with Rem 71/2 benchrest primers, and no ADI don't list it but I found data on the net.

Stix I will take photos of targets this afternoon, It's all new Sako brass, End of the day it could just not like the Sierra bullets, it shot great with the 55 vmax using a light load 23.2gr of 8208 as above photo on page 3. Wife is having the baby shower this Sunday so hopefully I can make it too the range of it's not flooded out.
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Re: .222 Magnum build

Post by RoginaJack » 24 Feb 2020, 10:07 am

AM88 - Rem 7 1/2 primers should work a treat. These are considered as a "Magnum Primer" by several reloading manuals.
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Re: .222 Magnum build

Post by Stix » 24 Feb 2020, 10:35 am

Do you have different brass to try...?

Can you slide a bullet in the neck of a fired case with absolutely no resistance...?
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Re: .222 Magnum build

Post by Am88 » 24 Feb 2020, 11:01 am

RoginaJack wrote:AM88 - Rem 7 1/2 primers should work a treat. These are considered as a "Magnum Primer" by several reloading manuals.
Regards.


That's spooky mate as I just read that myself about 20 minutes ago, and the benchrest are apparently the better.

Yes sticks I have nosler brass aswell, all brand new, unsure on the slipping the bullet in aebI resized them all already mate sorry, I have discover ed that with a small DIY dodgy drop tube I can fit 28.9 grs in the case of 2206H (referring to a previous thread in reloading forum of me struggling to figure how ADI had 28grs as max). So am going to give 2206H a go,I thought 8208 might be a bit quick, trial and error as they say, more testing.
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Re: .222 Magnum build

Post by Stix » 24 Feb 2020, 11:23 am

Well i cant fully follow your descriptions, so all i can say is if you think the recoil is different id be careful when it comes to shoving more powder in a case..

Measure the dia of a few bullets...
Measure the OD of neck of loaded cartridge
And measure OD of fired case necks.

You want the last measurement to equal or be bigger than +.002" of the sum of the first 2 measurements & have a bullet slide freely through a fired case neck...

It cant hurt to test this with the first few cases you fire...
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Re: .222 Magnum build

Post by Am88 » 27 Feb 2020, 7:52 am

Dually noted, I'll take my micrometers out with me, I've loaded some up with 2206H to try.

Sorry for the descriptions stix I probably come off as crazy
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