How much crimp on 38 Super with a JHP?

I just installed a Kart 38 Super Xaxt fit barrel in my SA 9mm loaded 1911.  I’v shot a few rounds of 124g jhp with 3.5 and 3.8g of Bullseye crimped at.380.  However I’ve been thinking maybe that’s too much crimp.  These are .355 bullets in my .355 bore.  New Starline supercomp brass.  What is a normal crimp for jacketed bullets in the super?

Just enough to get rid of the expansion and to tightly hold the jacketed bullet

Thank you Jim!

Michael C wrote:I just installed a Kart 38 Super Xaxt fit barrel in my SA 9mm loaded 1911.  I’v shot a few rounds of 124g jhp with 3.5 and 3.8g of Bullseye crimped at.380.  However I’ve been thinking maybe that’s too much crimp.  These are .355 bullets in my .355 bore.  New Starline supercomp brass.  What is a normal crimp for jacketed bullets in the super?

Off topic a bit, how did fitting that Kart barrel go? I've been contemplating that very swap.

blindshooter wrote:

Off topic a bit, how did fitting that Kart barrel go? I've been contemplating that very swap.

I’m going to guess minimal removal on upper lug pads?
Jon

Jon Eulette wrote:

blindshooter wrote:

Off topic a bit, how did fitting that Kart barrel go? I've been contemplating that very swap.

I’m going to guess minimal removal on upper lug pads?
Jon

Should have been more specific, I've never fitted a ramped barrel. Does the Kart Xact fit ramped barrel install go like the nonramped version?

Thanks

I have not fit one of the ramped Xact fit barrels, but most likely it’s identical in the fitting process.
Jon

The barrel fitting is not too hard.  Fit the hood then the upper tabs, checking for lower lug engagement.  Fit the OD of the bushing, which was a bit of a pain without a way to hold and turn it.  I used a drill but it was awkward.  Does it lock up like one that Jon Eulette does… no, not even close.  It’s shoots fine.  However, I haven’t shot it at 50.  I just wanted to goof around with it.  I’ll probably still have a hard fit barrel put in by a smith in the future.

I will say if you’re a new bullseye shooter like me, getting a gun out here in California is a problem.  Can’t buy lots of models.  Waiting long periods of time to get one built sucks.  I’v been waiting for my service pistol for almost two years to be finished.  Taking a SA loaded model that can be purchased and fixing it up is an option.  I was lucky enough to have a buddy sell me his wad gun that had just been rebuilt. I love it and it’s helped my shooting knowing that it goes where I point it.  
This 38 super interested me as it could be a center fire or EIC gun.

Thanks for the reply's and sorry for hijacking the thread.

I have been interested in .38 super barrel for my 9mm RO for a while. I have so far only been able to get decent accuracy by running everything pretty hot.

It looks like .38 super can be run slower and still get decent accuracy.

I only plink but I like to plink with something halfway accurate.

I shot 3.8-4.0 of Bullseye with a 115g HAP a couple of days ago in  the super back to back with the 9mm barrel that came with my SA loaded 9mm and the recoil was so much better.  If just for plinking I’d try it.  There are folks here shooting those barrels in competition.  They are probably more skilled than I am at installing them!

Mike, you think your some kinda bullseye pistol shooter?

Matt, I’m trying buddy!  I still suck, but, learning and getting better is a ton of fun.  Shooting 1000 yards with a palma rifle and irons is easy compared to bullseye!!!