200 gr Acme SWC-NLG coated feed issues

[CrankyCraig]

Hey, I’m sure some of you load these.
I picked up some 200 gr Acme SWC-NLG coated to try out.
I seated them @ 1.235 over 4.9 grains of power pistol & Winchester large pistol primers. The crimp measured .470-.469

Gun was a freshly cleaned 45 acp Sig 5” 1911 fastback nightmare with the factory match barrel.

I loaded three dummies rounds since this COL plunked & spun free. I cycled them by hand several times through a factory Sig ,Wilson ETM & trip cobra mags with no issues.

However I had a failure to feed after the first fired shot with the Sig mag where the case was not all the way into the chamber but the projectile was in but it was bound nose up. Nothing searoius but a PITA.

I dropped the mag locked the slide back and removed the round with my index finger letting fall out of the mag well. Loaded it back into the mag after looking it over. Fired one shot same thing.

So I stripped the mag and tried the Wilson ETM it was worse ok tried the other factory mag and got spotty feeding but finished the 25 I loaded. I forgot the trip magazine but don’t think it would matter much.

Are they nose diving or perhaps bouncing off the feed ramp? Maybe load abit longer or shorter?

Figured I’d see what input or at least what COL any of you use with these? I like this gun it’s a tack driver & the Bullets fly well I just need a little help getting them to feed well.

Thanks.

 

[Walkalong]

Did you try loading any at 1.260 to 1.265 OAL?

 

[Blue68f100]

I load SWC with just a thumbnail thickness of the shoulder showing, never measure any. As far as feeding is the slide locking back on the last round? If not your slide may be short stroking. If tha'ts the case, you will need to bump up the charge or spring change.

 

[CrankyCraig]

Did you try loading any at 1.260 to 1.265 OAL?

Nope I was thinking to try 1.250 so may try a few their too. I load ball @ 1.260 Thanks

 

[CrankyCraig]

I load SWC with just a thumbnail thickness of the shoulder showing, never measure any. As far as feeding is the slide locking back on the last round? If not your slide may be short stroking. If tha'ts the case, you will need to bump up the charge or spring change.

Locks back fine if when they feed Yeah they are about thumbnails thickness now but don’t feed think I’m going to try to load them longer. They are a new to me Bullets shoot nice but feeding is not good like I described in my initial post. Thanks though.

 

[CrankyCraig]

Did you try loading any at 1.260 to 1.265 OAL?

I’m going to the range later today I hope I’ll load a few up

 

[murf]

coat a few with a sharpie and manually run them through the gun (point in a safe direction if not dummy). find out where the sharpie is rubbed off and see if there is a burr, or something, on the barrel.

luck,

murf

 

[CrankyCraig]

Ug, range trip will wait until next week. Thanks for all the help sometimes it’s nice to get confirmation your trying the right things to fix issues. 1.265-1.260 would not quotes plunk & spin. 1.250 seems nice but no way to really tell until I pull the trigger on a few.

Sports pistol meters even better than my 231 never thought I’d see that.

Thanks again I’ll let you know when I know how it went!

 

[drband]

I use these bullets over 4.6gr Red Dot. Feed and fire exceptionally well. I will note that I previously had a friend with a Sig Nightmare Fastback who had the same issue with my ammo. The chamber seemed tighter than my 1911s. I don’t remember my coal but I believe it was set so the shoulder was .030 proud of the case. Most folks say about a thumbnail thickness.

 

[CrankyCraig]

I use these bullets over 4.6gr Red Dot. Feed and fire exceptionally well. I will note that I previously had a friend with a Sig Nightmare Fastback who had the same issue with my ammo. The chamber seemed tighter than my 1911s. I don’t remember my coal but I believe it was set so the shoulder was .030 proud of the case. Most folks say about a thumbnail thickness.

Yeah it’s a pita lol great gun with ball ammo though. My colt lightweight commander eats anything.

Maybe I’ll try another barrel one day perhaps a Wilson.