harleyfan

I have experienced the same exact issue with those bullets, and other coated bullets, as well. I did find that the Acme bullets were about a thou larger in diameter than some of the others. I never was able to fix the issue, so I just switched back to plated bullets. I am interested in any responses.

I would not do that. Once you have passed the brass through your Lee crimp die, you don't need to do anything else to it. A re-sizing die, is not designed to be used as a pass through. That is why it is taking so much force.

I was not aware that Dillon made a .40 pass through die. Could you possibly be trying to push this brass through a Dillon re-sizing die?

I have had very few problems seating primers in crimped 9mm brass. Sent from my XT1585 using Tapatalk

I think you are right. It is a combination of a tight throat and misaligned bullets that are slightly too large in diameter. Even the bullets that gauge correctly are a tight fit in the barrel when it is a little dirty. I am going to fix the misalignment problem and try .400, xtreme, plated bullets. Sent from my XT1585 using Tapatalk

Acme 200 gr round nose.

I also forced loaded rounds into a case gauge and got the same result. Scraped coating and lead off of one side of bullet.

Well, here is where I am. Overall length has zero effect on this problem. Some bullets loaded to 1.229 load fine, some at 1.15 stick in the barrel. If I load one of the sticking rounds and and allow the slide to close with full force, it shaves the Hi-Tek coating and (come lead) off of one side of the bullet. I would have to assume this means that these bullets are not seating straight in the case. These are round nose bullets and I am using a Lee bullet seating die. I am careful to make sure that the bullets are straight when they enter the die. Ideas? Am I looking in the wrong area? Maybe I should just go back to plated bullets and be done with this BS.

I will do some more testing when I get home this evening. I will let you know what I find out. Thank all of you kind gentlemen for the advice!

It is the portion of the bullet, forward of the case, that is sticking in the bore. It has to be either a tiny variation in diameter or a variation in the shape of the ogive in these round nose bullets.

I think it may be a variation in the diameter of the bullets. These are supposed to be sized to .401 but they are measuring .402. I have measured both the loaded rounds and just the projectiles prior to loading (no change). I have checked overall length of the bullets that are sticking in the barrel and there is no coloration. Some of the ones that stick are slightly longer than the ones that don't and vice versa. All of the bullets (sticking or not) are measuring .402.

Did that. Thanks. Some stock and some don't, same oal.

Bought and loaded some .40 200gr Acme bullets. Loaded them to 1.22. About half of them stick in my Lyman case gauge and in the barrel of my STI edge. I can't find any variance between bullets that stick or don't. If I pull the bullets the cases gauge fine. Could it be an issue with concentricity? At a loss. Sent from my iPad using Tapatalk

They won't head space right. As said, extractor might hold it well enough to pop it. Sent from my XT1585 using Tapatalk

If you don't have enough frustration in your life, you will after you buy one of these. Some people claim to have had good luck with them, but they don't work for me. I will say that Franfort Arsenal was very kind, and sent replacement parts, etc. They are very customer friendly. However, this is just a poor design, in my opinion. Other products that they sell have been just fine.