9X25 Dillon Data

[fredr1980]

I will have to look into Longshot. Been using Silhouette because I had a pound sitting around.

NICE... there are people on Calguns that also run the 9x25 Dillon. I recently picked up a 6" long slide 1911 and 9x25 barrel and just can't get enough of this little round. Here are some of my numbers using Longshot for some final loads that I ended up working up...

6" Barrel 1911
90grain XTP
CCI 350 Primer
12.0 Grains Longshot
2059 FPS 10-Shot Average
37.25 ES
17.06 SD
847 Ft Lbs. Based on Average

No pressure signs on the brass, happy with this load so that's what I'm going to stick with for the 90gr XTP's.


6" Barrel 1911
115grain XTP
CCI 350 Primer
10.8 Grains Longshot
1764 FPS 10-Shot Average
25.83 ES
12.47 SD
794 Ft. Lbs. Based on Average

No pressure signs on this brass also but I was REALLY wanting to push the 115XTP's to over 1800 FPS. Probably load up some at 11.0gr and 11.2 gr and see where that takes me. I had previously tried 11.0gr before settling with the 10.8gr but ended up with VERY flat primers with 11.0gr but then realized the the brass wasn't properly headspaced so that would have caused the flattened primers issue.

Ordered some 124gr XTP's and will work up a load based on some of the findings on other forums. Looking to get the 124's up to 1725-1750 FPS with Longshot...

Fred R

[Paper Boy]

I recently picked up a 6" long slide 1911 and 9x25 barrel and just can't get enough of this little round.

[fredr1980]

8voice8,
Sounds like that's going to be a nice pistol . The only thing about the 9x25 dillon in the 1911 is getting/finding a magazine that will reliably feed, at least on my gun. I have tried both Metalform 10MM and Wilson Combat 10MM mags and they don't feed reliably . I've also modified the feedlips on one of the 10MM and another 45acp mag but have yet to get them to feed great. The issue is having the rounds ride high enough in the mag so that they don't slam into the barrels ramp and thus excessively pushing back the bullet into the case. In my 8-round mags, the first 2-3 rounds have this issue but the last 5-6 feed perfectly... going to pick up some 38-super 1911 mags in hopes that they will let the rounds ride higher as usually these are for ramped barrels. still working on this and will update when I find a solution.

Fred R.

[Paper Boy]

Interesting, i will have to research that a bit. Lool forward to hearing how the 38 super mags work

[scfrogmansc]

Few questions...
1. I had a jam on my glock 20 yesterday and I noticed I had a stuck case... half got ejected half got stuck (brand new brass first time fired it.) bad brass or loading too hot?

2. I am loading 115gr Sierra JHP over 12GR Blue dot using cci primer.. i am noticing the primers are flattened like signs of over pressure... so i loaded a few at 10gr... and the primers are still flattened... is this because of the 9x25 ( high pressure and all?)

[Paper Boy]

If it only happened once I would suspect the case was bad. I have seen alot of people load 12g blue dot and be fine, I have some test loads with 12 sitting on my bench. Do you have pics of the primers?

[Bill Steele]

Few questions...
1. I had a jam on my glock 20 yesterday and I noticed I had a stuck case... half got ejected half got stuck (brand new brass first time fired it.) bad brass or loading too hot?

2. I am loading 115gr Sierra JHP over 12GR Blue dot using cci primer.. i am noticing the primers are flattened like signs of over pressure... so i loaded a few at 10gr... and the primers are still flattened... is this because of the 9x25 ( high pressure and all?)

What brand of primer?

[DRAB_81]

Few questions...
1. I had a jam on my glock 20 yesterday and I noticed I had a stuck case... half got ejected half got stuck (brand new brass first time fired it.) bad brass or loading too hot?

2. I am loading 115gr Sierra JHP over 12GR Blue dot using cci primer.. i am noticing the primers are flattened like signs of over pressure... so i loaded a few at 10gr... and the primers are still flattened... is this because of the 9x25 ( high pressure and all?)

I had similar issues with hot 10mm and a factory recoil spring (before I started loading the 9x25). My non-expert theory is that cycle speed was the problem. My guess was that the slide was moving so fast under recoil, that the extractor blew past the case rim before it hit the ejector. I dropped in a 22# ISMI setup, problem solved. Just food for thought.

ETA:

Take some pictures of those CCI primers in your fired cases. Most of my primers in 9x25 & 10mm look flatter than my 9's & 45's, but that's just the way they are. Even the factory 10mm UMC primers look on the flat side sometimes.


.

[Paper Boy]

Loaded 124G JHP with 12G Blue Dot.

It was very aggressive, flung the brass (watch the video) large flash, loud as hell and not all that accurate.

Primers were starting to flatten, I wish I had taken some 10mm with me so I could compare the two primers after shooting. Here is the worst one out of the bunch next to a piece of virgin brass and a new primer.

Primers






Data
My data for my gun - as always work up to this load


Video



Going to dial it way down and look for accuracy now, although hearing a little boy ask his dad why his gun "does not sound like that" is cool its not as fun when your grouping sucks.

[Paper Boy]

For those of you shooting the 90 grain stuff, how are you getting your bullets to seat straight?

[DRAB_81]

For those of you shooting the 90 grain stuff, how are you getting your bullets to seat straight?

I had a custom seater plug made. I gave a machinist my original 9x25 Dillon seater plug & a few bullets. He cut me a new seater plug for the XTP profile (90/115/124) out of stainless steel. All my bullets seat perfectly straight now.

[fredr1980]

For those of you shooting the 90 grain stuff, how are you getting your bullets to seat straight?

Are you using an RCBS 9MM expander in your set up after the dillon sizing die? I had the same issues until I went this route, found the solution on another forum and haven't had any issues since. Just use it to expand it slightly more than what the dillon sizing die does. The RCBS 9mm expander works as it fits the 10mm case and others will not.

Regarding the 1911 mag issue, I finally found a solution to that... I picked up some Wolff 10% extra power 45ACP magazine springs and I'm running them in the 10MM metalform mags I have and they now feed 100% reliably. Lost some capacity as they are now 7 round mags versus 8 rounders stock but they feed reliably so that's all that matters. HTH.

Fred R.

[Paper Boy]

Are you using an RCBS 9MM expander in your set up after the dillon sizing die?

Regarding the 1911 mag issue, I finally found a solution to that...

I am using the RCBS die to expand the case mouth. I was still having some issues though. Ill play with it a bit more.


Nice thanks for the mag info thats good to know.

[DRAB_81]

I am using the RCBS die to expand the case mouth. I was still having some issues though. Ill play with it a bit more.


Nice thanks for the mag info thats good to know.

I experimented with flaring the case mouth, to the point of being ridiculously over-flared, and I was still consistently having issues with crooked seating. Neither side of the Dillon 9x25 seater plug was making enough contact with the XTP profile. The only part of the bullet that made contact with the die was the very top of the HP. By making a seater plug that only makes contact with the ogive of the XTP, my crooked seating issues have disappeared. The only other real option would be to customize your own plug by putting some epoxy in it, and then making an impression in the epoxy with a greased bullet. You'd probably have to fill the HP cavity with silicon (essentially making it a FP), and get it absolutely dead center in the seater plug/epoxy. That seemed like a pretty diffcult thing to do right, so I went a different route.

[Paper Boy]

Ya I actually had that though about filling the seater plug somehow to make it have better contact but could not figure out a way to do it correctly.

I think if I can not figure out a consistent way of seating I may just go your route and have a buddy machine me a plug next time I visit him...

By the way, did you take a look at my primer pics in post #24? Do you happen to have any pics of some of your primers from your 10mm or 9x25 to compare them? I didn't take any 10mm last time I went and I wanted to see how much a normal load flattened them, if at all.

O ya and I took a tape messure last time I went, and you were right I had the chrono a bit to close. Made sure it was at 15 feet this last time.