[Glockman2013]

Anyone do and 10mm hand loading? I have a glock model 40 in 10mm which I got for hunting purposes. I have hand loaded a few bullets with SNS 180 gr. coated lead bullets just so I have some practice ammo to shoot up. After shooting about 10 rounds I took the barrel out and noticed some buildup in the rifling. It took forever to clean out.

I've loaded quite a few bullets and never seen it before. I'm wondering if maybe the load pressure to hot and the coating melted.

Ever had similar things happen while using coated bullets?

 

[tom mac]

How hot were they and what loading??
Have not had it happen with polymer coated ( tho i don't shoot many ) after about 10 rounds.

But leading , etc always seems to come out with a copper choreboy scrubbie and a bit of Hoppes No 9 real easy!

 

[WeeWilly]

If you are talking about carbon build up that takes longer to get out than lead, yes I have seen that quite frequently with coated bullets. If you are talking about lead buildup with coated bullets, I have not seen that.

There are a couple different ways you can go for your hunting loads if you tire of cleaning the coated residue.

Lots of guys like 200 gr Hornaday XTP's, loaded to 1200fps (+). Another option if you are leery of a HP bullets path through flesh and bone and prefer flat point lead for that task, Double Tap sells 200gr lead flat point bullets with gas checks for reloaders. Not quite the consistency of an XTP, but will be a genuine bone crusher going straight through and leading won't be an issue with those GCs.

You can get a similar bullet as DT 200gr from Bear Tooth, better quality, but lead times were always ridiculous when I bought them.

Have fun.

 

[my_old_glock]

I have never shot painted/coated bullets out of my Glock 20 10mm. I do shoot bare hardcast lead without a problem or excessive buildup. You will always get some buildup in the barrel. The buildup will/should eventually reach and equilibrium.


.

 

[JBnTX]

I've had that same build up when shooting coated cast bullets at lower velocities
in my Glock 20.

I don't think there was enough pressure to properly obturate the bullets in the bore.
When I increased the power charge, the problem went away.

It was most noticeable when using low charges of Blue Dot powder.

 

[GRR]

I load 180 gr poly coated BBI's in my 35 almost exclusively. Bunny fart loads for competition (730 fps). NO buildup at all. You may be loading the bullets in 10mm beyond what coated bullets are good for. I don't think coated bullets are the same as hard cast.

 

[Glockman2013]

I didn't test on the chronography but I was running just under max pressure from the alliant website which is about 1.5 grains over the book max i believe. 9.0 gr. of power pistol with a 180 gr bullet. I used some hoppes #9 cleaner and some lead remover to get it out but it took a lot of scrubbing.

 

[Glockman2013]

I wasn't sure what kind of buildup it was. The sales rep told me that they were rated for up to 1400 fps and I can't imagine i was shooting more than 1350fps. It did not come out dirty like lead usually does.

I am a big fan of the XTP's. I sided with the 180 gr. for hunting and I just said screw the coated, I ended up getting the hornady HAP bullets for practice. They are basically the XTP bullet without the "scoring"

 

[GRR]

I didn't test on the chronography but I was running just under max pressure from the alliant website which is about 1.5 grains over the book max i believe. 9.0 gr. of power pistol with a 180 gr bullet. I used some hoppes #9 cleaner and some lead remover to get it out but it took a lot of scrubbing.

Sounds like way too hot a load for coated bullets.

 

[Big Bird]

You should be able to run just about any decent hard cast bullet up to about 1600 fps with no leading issues. Beyond that a gas check takes care of the problem. If your bullets are leading your barrel around 1200 fps its the hardness/quality of the bullet that's the problem.

 

[halfmoonclip]

The magic of the 10mm is big bullet traveling fast. I don't understand the notion of trying to use any kind of lead bullet in a 10, and then being surprised about lead buildup.
Why mess with anything but jacketed bullets, especially if velocity is what you want? Personally, mediocre accuracy is the best I could achieve even with plated bullets....especially if driven hard. Some here, and a buddy at our club as well, have achieved good results with hardcast bullets, but not for me. Full disclosure; my experience is with 9mm, not 10mm.
For the OP, get yerself some actual jacketed bullets and move on.
Moon

 

[WeeWilly]

200gr WFNGC bullets going 1200fps make the G20 a genuine woods gun. It will put two holes straight through just about anything in NA. The wound cavity with a WFN lead bullet is pretty amazing. My G20/29 feed and shoot the above flawlessly.

XTP are a great choice in the jacketed realm. They don't expand as much as many modern JHP's (or maybe better said, peel back more), so they make a good compromise between wound cavity and the really important penetration most people care about when in the woods.

 

[happie2shoot]

I am not so much concerned with the build up as with the
accuracy and power I get, leading is the easier to get out
than copper or powder deposits, see post 2.

''But leading , etc always seems to come out with a copper choreboy scrubbie and a bit of Hoppes No 9 real easy!''

I don't use hoppes much but do use pot scrubbers and bronze
wool, takes about ten to twenty seconds, big deal.

Remember it's more how it shoots than little deposits in your barrel,
a clean barrel will sometimes throw a shot or two until the barrel
gets seasoned a little.

We have a bore scope and you would not believe whats in your
barrels or how bad some look even when they are clean, most
people never really get their barrels really clean or broken in.

When you are shooting to 1400 yards you tend to check and
do everything you think of to get the best results, I have only
shot my handguns to around 1000 yards.

 

[JBnTX]

I have only shot my handguns to around 1000 yards.

Only a 1000 yards?........

 

[halfmoonclip]

1k yards? Are we talking a handheld mortar here?
Seriously, I've never been able to get decent accuracy out of a Glock with anything but jacketed bullets. I've seen the guys wrestle with replacement barrels and other 'fixes' to try to get a Glock to shoot lead. One guy has had great success; the others have wasted lots of time and money trying to fix a nonexistent problem. Glocks were designed for jackets, and jackets make less lead dust in an indoor range.
Yeah, I know lead/plated is cheaper, especially if you cast them yourself, but some things just aren't worth the trouble. YMMV.
Moon

 

[tom mac]

Seriously, I've never been able to get decent accuracy out of a Glock with anything but jacketed bullets.
Moon

Of course YMMV, all gun are different when reloading....
Will say tho, using the Xtreme heavy plated 180's in my G20... I can't see any diff at 25ft between remington full jacket and the plated. Of course I'm not shooting at 1k yards

 

[JBnTX]

Seriously, I've never been able to get decent accuracy out of a Glock with anything but jacketed bullets.

I get outstanding accuracy out of OEM Glock barrels in 10mm and 45acp, with coated lead bullets.
9mm is not so good. So bad that I'm about to just stick with jacketed in 9mm Glocks.

But I'm only shooting at 10 yards, not a 1000 yards.
Maybe accuracy would be better at 1000 yards?


.

 

[fredj338]

It's possible you got a bad batch of coated bullets, but mine don't leave much residue, it brushes right out. I coat my own, the smash test is a good indicator. 2# hammer, flatten that puppy. If it doesn't pop off gtg.

 

[happie2shoot]

1k yards? Are we talking a handheld mortar here?
Seriously, I've never been able to get decent accuracy out of a Glock with anything but jacketed bullets. I've seen the guys wrestle with replacement barrels and other 'fixes' to try to get a Glock to shoot lead. One guy has had great success; the others have wasted lots of time and money trying to fix a nonexistent problem. Glocks were designed for jackets, and jackets make less lead dust in an indoor range.
Yeah, I know lead/plated is cheaper, especially if you cast them yourself, but some things just aren't worth the trouble. YMMV.
Moon

The load in the 44 SRH 9.5'' barrel I used was a 340 gr LFNGC
at 1400 FPS, it takes the boolit 3.5 seconds to get there.

That revolver has shot five shots in 1 1/4 inches at 100 yards,
the sixth shot was still under two inches.

I like to see how far a gun will still shot groups, some will start
throwing bullets wide, tumble, even at the shorter ranges.

When you live at a place that has a range set up to 1000yds you
tend to do a lot of experimenting.

I have shot many guns at long range that are not associated with
long range shooting, but that's what I do while most men waste
time looking at ball games.

I have only seen one ball game from start to finish, I did not have
a choice, two of our platoon members was playing on the team.

 

[halfmoonclip]

happie, I'm glad you push the envelope on handguns; I've successfully hunted the King's deer with a big Smith revolver and 1400 fps handloads.
My troublesome loads in 9mm seemed to shoot respectably in a Glock 43 (4.8 B'eye/115 Berry's plated), so I ran a bunch of that load. Then I tried them in a G26, and couldn't stay in the scoring rings of a B29 silhouette at 50' At 21' they were okay. Dropping the load to 4.2 made the loads work okay in other Glocks, but jacketed bullets let me run 4.6 with no drama. I can get jacketed for pretty much plated money, so it just isn't worth the fooking around to use plated. I shoot a lot in an indoor range, and my lead count has been a little elevated, so that's another reason to avoid bare lead boolits.
Realize that bullet cost is a real issue in heavier calibers; I load plated bullets for 1911s, but they have conventional rifling.
Moon