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243LPR
03-12-2018, 09:11 PM
Just picked up a mdl 11 in 223 for a build in 223 AI. I see that the longest OAL I'm going to be able to get in this magazine will be 2.30". I don't have the barrel yet but it will be a 1-8 twist to maybe play with some heavy bullets. Are the aftermarket barrels throated longer than the factory ones? Already sold off the old sporter barrel. I don't want a single shot. Anyone else have this problem and if so how did you correct it?
scooterf79
03-13-2018, 03:48 AM
You should be able to tell the smith how you want it throated. I would just think if they throat it short then you'll lose powder capacity especially with the longer bullets.
Scooter
yobuck
03-14-2018, 09:54 AM
Well if he loses powder capacity, whats the point to the AI?
Why not a 22x250 or a 220 Swift and call it a day?
sharpshooter
03-14-2018, 03:39 PM
Improving the .223 only gains you 1/2 grain in water capacity.....that's why P.O. Ackley never done it, he knew it was a waste of time.
243LPR
03-21-2018, 03:01 PM
If I took the block out of the magazine what follower could I use for reliable feeding?
243LPR
04-05-2018, 10:19 PM
Got the barrel and turns out I have the opposite problem,this thing is throated way too short. 40 gr Vmax seated to the lands is only 2.20" oal.
243LPR
04-07-2018, 10:58 AM
On the plus side I had a .40" 4 group average at 100 yds with fireforming loads.
Scott Evans
04-22-2018, 02:03 PM
The way to fix that (OAL restriction) is use a stagger feed action, or convert to AICS style single stack which feed AI's perfect.
243LPR
04-22-2018, 06:06 PM
This is a staggered feed. AI loads feed horrible and forget about hollow points.
GaCop
05-28-2018, 10:04 AM
Capacity increase is not great but, since I went AI, I hardly ever have to trim brass.
243LPR
06-20-2018, 09:43 PM
I think I have my feeding problem fixed. I pulled the barrel off and chamfered the chamber with my case deburring tool and polished it with flitz. Loads slide right in now. Woo-Hoo!
GaCop
08-03-2018, 02:09 PM
I think I have my feeding problem fixed. I pulled the barrel off and chamfered the chamber with my case deburring tool and polished it with flitz. Loads slide right in now. Woo-Hoo!

Hmmmmmm, very interesting!
Robinhood
08-05-2018, 12:01 PM
Was this a McGowan?
243LPR
08-09-2018, 10:36 PM
Yes,and mfr. help was nonexistant. Last McGowen for me.