Does anyone?

[Razorback]

Does anyone crimp in the crimp groove of the Lyman 358429 for your revolver and or a 357 caliber rifle ?

I know this has been discussed at length & most recommend crimping over the front driving band. Also know that crimping in the crimp groove on 38 special is the norm ( at least I think I know ).

Back to the original question : who does crimp this bullet for any application in th crimp groove? If so do you mind sharing your load recipe ?

Thanks John

[rintinglen]

In my Colt Pythons, I have to crimp over the shoulder, as I do for my Model 28. My Model 66 can take a longer OAL, but truth to tell, I gave up on that boolit many years ago for handguns and these days the only use I have for it is as a light weight plinker in my .348, where I do crimp in the crimp groove and load it over 13 grains of Red Dot.

[omphacite]

I asked this question a while back and decided that I would work up a load with the case crimped on the crimp groove using H110, since my GP100 will accommodate the long OAL. I started working up a load starting at 14.5 gr H110, and worked up to about 15.2 grains with no pressure signs. I'm waiting for it to get warmer before I go further. The Lyman book gives data for using the crimp groove in the T/C section, which happens to have the same start and max, for some reason. There was a member who posted within the past several months that he uses a load of around 16.5ish grains H110 when crimped in the crimp groove, but I can't find it.

If you aren't trying to squeeze every but of velocity out of the cartridge then I don't see much reason to use the crimp groove.

[Catshooter]

Razor,

Some sixguns have a long enough cylinder to crimp in the groove, some don't. Back when I did the 357 I had Smith 686s and a Ruger Blackhawk. I crimped in the groove. Why not if it'll fit? More secure and looks better to my eye anyway.

Welcome to the forum. You too omphacite.


Cat

[dhom]

I use the crimp groove in my GP100 6". I believe the overall length is 1.635". I have outstanding accuracy using 6.5 gr Unique for 1050 fps. I don't load this bullet for hunting, just target and bowling pin shoots.

[bhn22]

I always use the crimping groove wherever possible. I do have several versions of this mould, and have always crimped it in the groove, including my super early 358439 with the original full length nose. If I have a revolver with a short cylinder, like a J frame or Python, it lives on the Keith bullet in 38 Spl brass with 38-44 loads. FWIW, I also load 358156 in 357 crimped into the lower crimp groove, and the loads adjusted slightly upwards with certain powders.

[1Shirt]

I crimp in my Blackhawk, and my 94 Win, and they work well. Will not work in my colt, and have to crimp over the shoulder.
1Shirt!

[theperfessor]

My GP100 is too short to use this bullet in .357 when crimped in the crimp groove, but my Blackhawk is longer and it works fine. I don't use that bullet in my GP100 any more, and use the 358477 or other SWCs in the 150-160 gr range in it. Why not stretch it out if the gun can take the length? I have tried 2400 and 4227 with the -429 in .357.

[Green Frog]

How about the 358429 seated out to the crimping groove in a 38 Special case? Isn't that the way Keith originally used it when the bullet was first designed? I'm thinking it was for a large frame S&W like the 38 HD and would be just as appropriate in a 686 or other L-frame. If I could get a tested H-110/296 load for that, I could run with it.

Froggie

[jakec]

I use the crimp groove on that boolit over 5 gr of red dot in my blackhawks. it just looks right to me.

[Green Frog]

I use the crimp groove on that boolit over 5 gr of red dot in my blackhawks. it just looks right to me.

Is this with a 38 SPL case or 357 Mag? I just came up with a bunch of Red Dot that I've been wonder how I could use. How "warm" is this load? For the 686, I'd like more than just the 38 midrange loads I'm building for my K-38.

Froggie

[bhn22]

Is this with a 38 SPL case or 357 Mag? I just came up with a bunch of Red Dot that I've been wonder how I could use. How "warm" is this load? For the 686, I'd like more than just the 38 midrange loads I'm building for my K-38.

Froggie

If it's in 38 Spl cases, the pressures are off the charts. The 173 Keith is 38 Spl tops out around 4 grains.

[Green Frog]

Thanks, I thought that sounded pretty extreme. I remember reading Skeeter's suggestion of loading 38 Spl brass with the 357156 bullet (158 gr+/-) seated out long to produce a "short cased 357," but I'm in strange territory with this 170 gr bullet.

Froggie

[bhn22]

For some reason, +P loading data for the 173 Keith is pretty rare in 38 Spl. You can look at 38-44 data, which is loaded in 38 Spl cases to 357 mag velocities. Search for "38-44" in the Google search bar near the top of the page. 38-44 loads always provoke a lot of discussion 'round here.

Attachment 132283

[smorin2]

I use the crimp groove on that bullet in my Ruger blackhawk in 38 & 357 loads but the 357 will not chamber in the SP101.Hope this helps.