I see quite a few of you using cast 200+ gr. flat nose bullets. I've been loading the DT 200 WFN bullets and ran into a surprise issue some time back that I thought I'd share. I worked up a load of Longshot at 1200 fps, seated to 1.260". Shot great, functioned fine, perfect. Imagine my surprise to find the cartridges were binding in my Glock mags when I attempted to load more than about 7 or 8. The big meplat was jamming up on the inside front radius. I found I had to seat them to 1.232" in order to eliminate the binding and allow a full 15 rounds, which of course required reducing the powder charge accordingly.
Just curious if anyone else has experienced this issue.. I'd never seen it mentioned before.
I've experienced the same problem running various brands of 200 grain WFN bullets. (DT, Montana Bullet Works, Beartooth and Montana Bullet Works NOE bullet) You found the solution. Changing the seating depth solves the problem. You should be good to go now.
Yep, they're good to go. I've shot quite a few of them and they feed/function fine in both my 20 and 29. I had to back down to 8.3 Longshot for 1210 in the 20 and 1150 in the 29. I just thought it was curious that I'd never read any mention of this problem with the WFN bullets in Glock mags. Something to be aware of for people loading these bullet profiles in their Glocks..
I load to 1.250" as a matter of course as my 1911's in 10mm don't like longer COAL.
I don't load this bullet, but having to load down to 1.230" would be a real kick in the pants.
THinking though this logically though....
It seems that the extra-wide metplat on these bullets has lead in the nose that other designs have in the base. Are you sure you case capacity when seating these bullets to 1.230 is really less than another bullet at 1.250 or 1.260?
I will try to test water capacity of a starline case later today with a 200 grain NOE seated at 1.260" and report it back.
In the pull downs that I have done I have seen where the wider MEPLAT 200-230 grain were sometimes loaded shorter 1.242"
This improves the tipping angle and as stated the stacking in the magazine.
(https://i.postimg.cc/J7sFxVMV/fitinmag.gif)
(https://i.postimg.cc/CKxnVPj9/chamber-tip.jpg)
Very true sqlbullet, these LBT style designs definitely maximize powder space with a given bullet weight. I had many custom molds Veral Smith made me for my big revolvers back before those style bullets were commercially available.
Sorry for the delay.
Starline brass, once fired, NOE 403-200 WFN, seated to a COAL of 1.260"
It held 12.1 grains of water or .7865 CC of water.
Link to bullet drawing: http://noebulletmolds.com/smf/index.php?topic=2217.0
Edit--I should add that the bullets were powder coated and then sized to .401"
Interesting. Those bullets are nearly identical to the Double Tap 200. Meplat is the same as close as I can measure, and they are .638" with the gas check. I'd be happy with the NOE but I don't cast anymore. Appreciate the info.