ar2207 for 357mag rifles

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Re: ar2207 for 357mag rifles

Post by Blr243 » 16 May 2023, 7:29 am

Thanks blade
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Re: ar2207 for 357mag rifles

Post by ash_hendo » 16 May 2023, 6:48 pm

Blr243 wrote:I would if it were plentiful and available. I would just fill the case and shoot it but my trailboss stash is too valuable for otjer potential uses ... if i needed to load for a 357 rifle i would be useing 2207



I was wondering if 2207 would be suitable, which is why I looked at this thread (I didn't see any load data for it and 357 mag on the ADI web page)

Do you know what a safe starting load is with 2207? I re-read this thread and I can't pick it out....


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Edit, was in this post...

"17.2gn (compressed) 2207 and 180gn Demon/Black Widow powder coated projectiles with magnum primers, the maximum uncompressed load is about 16.4gn.This is a hot 357 Mag load but is as much powder as I can get into the case and still seat the projectile within OAL specs so there's no concern about over loading them and certainly no way to over load with a lighter projectile."

Gives me food for thought.... was planning on using 140gr projectiles.
Last edited by ash_hendo on 16 May 2023, 6:55 pm, edited 2 times in total.
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Re: ar2207 for 357mag rifles

Post by ash_hendo » 16 May 2023, 6:50 pm

bladeracer wrote:
ash_hendo wrote:I see ADI lists Trailboss loads for pistols, but not for rifles, does anyone use trailboss/357mag in a rifle here?


I use Trailboss in .38 Special, .357 Magnum, .44 Magnum and all other rifle cartridges, and 12ga. shotgun. It's extremely versatile, but velocity-limited as you can only fit so much of it into a case. If the case holds 30gn of a conventional rifle powder you will probably only fit about 10gn of TB into it.


I might just give it a go and see what velocity I get then!
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Re: ar2207 for 357mag rifles

Post by Blr243 » 17 May 2023, 7:21 pm

I cant remember what 2207 load i used sorry
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Re: ar2207 for 357mag rifles

Post by Obie73 » 19 May 2023, 8:56 am

Although I earlier said I was going to just shoot 30-30 and .357 Mag lever rifles I keep coming back to reading up on the ol' 44-40. Americans occasionally mention they load this round with H4198, which apparently is basically the same as AR2207. Some very accurate results are given. However I know not much at all and am just repeating what I think I read somewhere.
Last edited by Obie73 on 19 May 2023, 9:46 am, edited 1 time in total.
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Re: ar2207 for 357mag rifles

Post by Obie73 » 19 May 2023, 9:02 am

It's possible the 24" barrels might be better for burning all of the slower-burning 2207. My interest in lever rifles is mainly centred on the 1873 model. I really like how that action lifts the rounds parallel with the bore. There's no angling up into the chamber. I don't like chamber mouths that are oval shaped, after two 357 Model 92s I had kept resulting in slightly bulged out brass at the base of the cartridges.
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Re: ar2207 for 357mag rifles

Post by bladeracer » 19 May 2023, 1:59 pm

Obie73 wrote:Although I earlier said I was going to just shoot 30-30 and .357 Mag lever rifles I keep coming back to reading up on the ol' 44-40. Americans occasionally mention they load this round with H4198, which apparently is basically the same as AR2207. Some very accurate results are given. However I know not much at all and am just repeating what I think I read somewhere.


H4198 _is_ AR2207, same powder, marketed under Hodgdon's brand in the US. Hodgdon don't make much of anything, they buy products and rebrand them.

I used IMR4198 when I was a kid in the .222Rem. I used it right down to levels that didn't always push the bullet out the muzzle. If H4895 didn't exist I would probably be playing with AR2207 much more.
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Re: ar2207 for 357mag rifles

Post by ash_hendo » 24 May 2023, 9:22 pm

bladeracer wrote:
Obie73 wrote:Although I earlier said I was going to just shoot 30-30 and .357 Mag lever rifles I keep coming back to reading up on the ol' 44-40. Americans occasionally mention they load this round with H4198, which apparently is basically the same as AR2207. Some very accurate results are given. However I know not much at all and am just repeating what I think I read somewhere.


H4198 _is_ AR2207, same powder, marketed under Hodgdon's brand in the US. Hodgdon don't make much of anything, they buy products and rebrand them.

I used IMR4198 when I was a kid in the .222Rem. I used it right down to levels that didn't always push the bullet out the muzzle. If H4895 didn't exist I would probably be playing with AR2207 much more.


H4895/AR2206H is working so well in my other rifles (223,243,6.5cm and 308). I imagine it is just too slow for my 357 with a 16.5" barrel, maybe I should give it a go. It works a treat in my Ruger Ranch rifle(223) with a 16 barrel.... getting 10-15fps variation between shots.... Makes 1/2 moa without even trying...

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Re: ar2207 for 357mag rifles

Post by Obie73 » 24 May 2023, 9:35 pm

[quote="ash_hendo"]
"I imagine it is just too slow for my 357 with a 16.5" barrel, maybe I should give it a go. It works a treat in my Ruger Ranch rifle(223) with a 16 barrel.... getting 10-15fps variation between shots.... Makes 1/2 moa without even trying..."

It would be amazing if it performs well in a 357 rifle. But I'm guessing probably too slow, as you say.
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Re: ar2207 for 357mag rifles

Post by deye243 » 24 May 2023, 11:18 pm

Not to mention nowhere near enough pressure which is the main thing with a clean burn proper energy Development
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Re: ar2207 for 357mag rifles

Post by ash_hendo » 27 May 2023, 7:45 pm

deye243 wrote:Not to mention nowhere near enough pressure which is the main thing with a clean burn proper energy Development


Yeah, the straight walls may mean nowhere near enough pressure, might try a light load still and see how that goes.
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Re: ar2207 for 357mag rifles

Post by Obie73 » 27 May 2023, 10:31 pm

It will be interesting to find out how it goes.
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Re: ar2207 for 357mag rifles

Post by ash_hendo » 06 Oct 2023, 7:39 am

Obie73 wrote:It will be interesting to find out how it goes.


Here are my findings in my 16.5" barrel: https://shootersdelight.com.au/product/ ... ch-barrel/

Factory Federal 125gr = 2100 fps
140gr FTX with 4gr TrailBoss = 756fps
140gr FTX with 16gr AR2207 = 1200 fps
140gr FTX with 14gr AR2206H = 530 fps
140gr FTX with 15gr AR2206H = 766 fps
140gr FTX with 16gr AR2206H = 1000 fps

When I get some time I will play some more with this...
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Re: ar2207 for 357mag rifles

Post by mickb » 30 Oct 2023, 8:20 pm

The AR2207 load is roughly 38 special or 38+P in carbine power.

On a side tangent, may not be relevant info but the 140FTX wont expand below about 1200fps. Hornadies estimates of 700-900fps expansion for their various XTP and FTX are very gooned up. Off my own research the lowest velocity expanding XTP's in 357 are actually the 158 XTP which will get some nose flattening to about 50cal just under 1000fps impact. Funnily enough the 125, 110xtp both have harder noses than the 158XTP and need another 100-200fps to expand
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