Anyone tried heavier recoil spring in xdm 10mm?

[jtracy1223]

Hello. I was wondering if anyone has put a heavier recoil spring in the new Springfield xdm 10mm and if it helped at all with how far the brass flys? I picked up the 4.5 inch model and after a new trigger from powder river i love this gun. Only issue is i am launching brass into outer space and im losing more brass than i would like.

Does anyone know what weight springs come in the xdm 10mm. I have seen it posted somewhere that it is 18 lb. I was thinking of trying 20 or 22 lb spring and see if it makes a difference.

[am44mag]

Howdy

I'd be interested in finding this out too. Mine chunks brass pretty high and far. It lobs them over my brass catcher and into the next county. It's more of an annoyance than anything, but I hate losing brass.

Sent from my SM-G965U using Tapatalk

[jtracy1223]

Heres a link to the same topic i started over at the xdtalk forums for anyone interested.
https://www.xdtalk.com/threads/anyone-tried-putting-heavier-recoil-spring-in-xdm-10mm.441257/#post-7602285

[sqlbullet]

I note reading the other thread it says the ejection pattern tightened up, but was still 15' distance.  In my experience over many years with the 10mm in lots of platforms, the only remedy to this is to alter the ejector.  But that does risk reliability issues.

[jtracy1223]

15 feet and tighter would be better than spread out up to 20 sometimes 25 feet. If i could get an extra factory ejector for a reasonable price it would be interesting to experiment with.

[blaster]

all 10 mm firearms throw the brass into orbit. my personal solution to saving brass was to get one of those cheap foldable sun shades. my shooting spot is on the property I keep my boats & traps. I built a berm with my Bob Cat and we got a dry spot in the mangroves to shoot. (40 yds max) if there is a breeze, it gets blocked by the trees. so I wanted some shade for a while anyway. on the right side and part of the right rear side, I hung some old shade cloth with a 1x2 p.t. pine board stapled on the bottom for weight & stiffness. when shooting, I stand on the left side and all the brass is caught. I can put it up & take it down by myself. today I shot around 250 full house 10mm rds through my new XDM.  I recovered ALL of the brass!   before hurricane Irma took it away, my shooting bench had a 1x2 & shade cloth roof and right side. it worked ok but still a lot of brass made it to the bushes.

[sqlbullet]

Currently I have the biggest tarp I could find at harbor freight in my shooting kit.  I think it is 25'X40'.  I shoot 2-3 shot and have my spotter watch the brass, then lay out that tarp so the middle is about where the brass fell and the front edge is about where I am standing.

This works fine for chrono and target work, but falls short for any dynamic drills where I practice against multiple targets.  I like blaster's idea of a cheap sun shade.  I have been waiting for costco to have them on sale.  I plan to grab one and then install mosquito net walls to stop brass.

[Azrckcrawler]

Tried a 20lb spring in my 4.5 today, was shooting 200gr @ 1200+ fps and 155 approaching 1350fps. Brass was thrown about 12ft opposed to 20-30 before. 100% function and recoil seemed to be reduced as well. Tradeoff is the slide is harder to rack, might be close to the max pull my wife would feel comfortable with.  May try the 22lb spring next time out just to see the difference but 20lb seems good to me.

[blaster]

anyone know what weight the factory XDM spring is?

[Azrckcrawler]

anyone know what weight the factory XDM spring is?

Since the 20lb spring was about 1/5th longer than the stock spring with the same dia base material, I'd  guess the stock spring is close to 16lb.

[cigarman454]

anyone know what weight the factory XDM spring is?

Since the 20lb spring was about 1/5th longer than the stock spring with the same dia base material, I'd  guess the stock spring is close to 16lb.

From what I'm seeing the factory spring is 18#

[Azrckcrawler]

anyone know what weight the factory XDM spring is?

Since the 20lb spring was about 1/5th longer than the stock spring with the same dia base material, I'd  guess the stock spring is close to 16lb.

From what I'm seeing the factory spring is 18#

Could be, wonder if the Wolff 20lb is on the heavy side to account for break-in, it feels greater than a 2lb increase on initial pull.

[50BMG]

I just used my handy dandy recoil spring gauge on my 4.5" XDM's factory recoil spring and I came up with 20lbs.
I haven't fired a ton of hand loads out of it, but here are my brass-tossing adventures thus far.
1). Privi Part. 180g JHP (kinda wimpy load @1080 fps in a 5" 1911). XDM functioned fine. Brass ended up @8 feet to the 4 O'clock position.
2). PMC 170G JHP. Haven't chronological them but they have much more flame & punch than the PPIs.  Advertised MV is 1200fps. Brass ends up @ 12-15 feet to the 4 o'clock position.
3). Montana 180g LBT, 180GR, LFN-GC in front of 12.9g AA#9, CCI300 spark plugs. Brass ends up @ 12-15 feet to the 4 o'clock position.

[Azrckcrawler]

I just used my handy dandy recoil spring gauge on my 4.5" XDM's factory recoil spring and I came up with 20lbs.
I haven't fired a ton of hand loads out of it, but here are my brass-tossing adventures thus far.
1). Privi Part. 180g JHP (kinda wimpy load @1080 fps in a 5" 1911). XDM functioned fine. Brass ended up @8 feet to the 4 O'clock position.
2). PMC 170G JHP. Haven't chronological them but they have much more flame & punch than the PPIs.  Advertised MV is 1200fps. Brass ends up @ 12-15 feet to the 4 o'clock position.
3). Montana 180g LBT, 180GR, LFN-GC in front of 12.9g AA#9, CCI300 spark plugs. Brass ends up @ 12-15 feet to the 4 o'clock position.

Wonder if they made a switch. The wolf 20lb spring was the same wire diameter but almost 1.5" longer than the factory spring in my XDM.  I was actually worried that the slide would not be able to go far enough back. If you have a set of calipers handy post up the wire dia, spring dia and overall length. I will measure my stock spring when i get back home, can also provide Wolff 18, 20 and 22lb data as I bought the whole tuning kit.

[50BMG]

Wonder if they made a switch. The wolf 20lb spring was the same wire diameter but almost 1.5" longer than the factory spring in my XDM.  I was actually worried that the slide would not be able to go far enough back. If you have a set of calipers handy post up the wire dia, spring dia and overall length. I will measure my stock spring when i get back home, can also provide Wolff 18, 20 and 22lb data as I bought the whole tuning kit.

Hey rockcrawler,
I measured my stock XDM spring and here's what I came up with.
The spring OAL is 6.085" on my 6" caliper (measured roughly 6-1/16" on a steel tape; only @1/4" shorter than a 5" 1911 spring I had laying around).
The wire diameter is .051".
Like you, when I first pulled the gun apart, I was surprised how long the recoil spring was, especially when placed next to a full size 1911 spring.

Are your aftermarket spring ends closed, squared and ground like my factory one is?

With further inspection, I'm also kinda concerned how thin the guide rod flange is. Makes me wonder how many full house rounds it will take before it cracks or splits.