reloads for Glock

[edadmartin]

Ive just healed up from foot surgery and am ready to load for my glock 30 which has a new KKM precision barrel in it.
Ive had great success loading for my SF loaded 1911 using 200gr SWC with Accurite # 2, 4.6 grains, Some one here mentioned trying round nose in stead of swc. Im also out of AA#2 and dont expect to get more any time soon, but I do have Red Dot . Im hoping some one has a glock/KKM setup and would suggest bullet type COL etc etc. I have both swc and rn bolits 200gr. So looking for a starting point. thanks

[Ed_Shot]

My G30SF does perfect with Lyman 452374 (230gr RN). It does fine with the Lyman 452630 (200 gr SWC) about 99.9% of the time. I load the SWC's to an OAL of 1.245 to get a little shoulder above the rim...I think that helps. I shoot both boolits over Promo/Red Dot 4.5 gr. Let your weapon tell you what it likes.

[twc1964]

I just use a 230gr rn boolit over 6.8 of the corn flakes of the powder world, unique. will tear the centers outa those targets all day. I do have a bunch of 200 grain swc bullets from the long defunct hustler bullet co that I've been wanting to load up.

[Love Life]

I like a 230 gr RN over 5 gr of red dot.

[garym1a2]

200 gr swc over 4.2 gr of wst. Accurate in G21sf.

[edadmartin]

Ok that helps. Id like swc in both the 1911 and g30 but that would be to easy. Ive loaded about 50 200gr rn with 4.6 gr of reddot, same powder measure setting as for AA#2 with the swc. Diff is the rn is shorter at 1.240. Ive been running the swc at 1.255. I wont get to the range until next week now ,but will post my results here. gonna try both guns with both bullits. tanks

[edadmartin]

my glock really does like the shorter 1.225 col. no FTF at that length with the 200gr lrnfp from MBC.

[KYCaster]

SF ? What's it mean?

Jerry

[Elkins45]

SF ? What's it mean?

Jerry

Short frame. Some of the new large framed Glocks (20, 21, 30, maybe 29) have slightly smaller grip frames but use the same magazines. It's not a huge difference but it does make them a bit easier to grip for those of us with small hands.

[edadmartin]

Ive been fighting col on my glock 30 all summer it has a kkm precision barrel,.452 Ive been all over the place,at first I tried 1.255 which is what my 1911 shoots all day long and I tried 1.225 and and got 10 FTF out of 100. and lately went down to 1.219 and had problems with the mag not feeding. Is it your experiences that a small col adjustment is better than a larger one? Ive also switched from 200gr swc to MB rnfp 200gr. Need help !!! I just cant get consistency with reloads so far .

[Love Life]

Put the factory barrel back in and see if your reloads work in it.

[edadmartin]

The old barrel shoots factory loads just fine but has similar FTF problem with the after market barrel . Im reloading a col of 1.242 today,these have minimum fc with a size at the mouth of .467-8 My powder measure this time is 5.2 Accurite #2 so a little more oomph over the 4.6 gr previously. Ill shoot and report back.

[dondiego]

Does the factory barrel shoot your reloads OK?

[jonp]

Don't do it. You'll blow up the gun, you and your entire town. I heard isis is using castboolits and glocks as ied's!

[DougGuy]

If you are using .452" in a KKM barrel, it may need throating so you can set COA as long as you want to. This is a KKM barrel I did for a guy who wanted to seat out long and load .45 Super.


http://i1202.photobucket.com/albums/bb374/DougGuy/Cylinder%20Services/8b5f5e57-990e-4a7d-9b80-9911ab6438f1_zps53fb17d2.jpg (http://s1202.photobucket.com/user/DougGuy/media/Cylinder%20Services/8b5f5e57-990e-4a7d-9b80-9911ab6438f1_zps53fb17d2.jpg.html)

[edadmartin]

doug please explain, exactly what will the throating accomplish on my KKM glock barrell?

[Love Life]

The old barrel shoots factory loads just fine but has similar FTF problem with the after market barrel . Im reloading a col of 1.242 today,these have minimum fc with a size at the mouth of .467-8 My powder measure this time is 5.2 Accurite #2 so a little more oomph over the 4.6 gr previously. Ill shoot and report back.


Sir,

I don't understand what you are saying here. Are you saying that you have the same FTF issues in your factory barrel that you are having in your KKM aftermarket barrel shooting your reloads?

[edadmartin]

LOVE LIFE, Ok let me clarify, I shot only factory rounds with the stock barrel and it was flawless. I wanted to do reloads so I started with the same load as for my 1911. 4.6gr AA#2 MB .452 200gr lswc, col was 1.255, plunk tested perfect, shot thru the KKM barrel and started getting FTF. Id have to slam the mag or the slide to get it to fire,maybe twice per mag.. But the KKM shot factory 230 rn with out issue. So I started shortening the col, and went to a MB lrnfp per some online info. Ive tried a few cols with varied results, and thats where Im at . sorry for being confusing.Im finally going to the range tomorrow and will report back.

[mnkyracer]

Have you tried to plunk test any of the rounds that FTF'd. One of the issues I ran into with a Lone Wolf bbl was case wall thickness on mixed lot brass. I was right at the edge of the boolit being too big and some brass would jam.

[tomme boy]

Post up a picture like the one above. You may need to run a throating reamer into the chamber to finish the throat. The picture above is not the best looking for shooting cast but it helps us to see what is going on to help you figure out what is going on.

[Love Life]

Do you have lube/gunk buildup from shooting your cast? This might be causing the issues you are having since they come later in the firing time instead of right away.

Also, measure some loaded rds to see if they are too fat. Set your crimp for .468-.470. If the barrel is too tight send it back to the manufacturer.

The fact that the KKM handles the factory 100% tells me it is an issue with your reloads.

Something I do is I trim all pistol brass that comes into my garage. This gives me consistent crimps. If your brass is varying lengths then you can have some issues there as well.

Lets say you set your crimp die to crimp and you just so happen to have used a long piece of brass. It may not crimp enough when you load shorter brass. This is why some people run into issues.

[trlcavscout]

I like a 230 gr RN over 5 gr of red dot.

i like this one also, or 200gr RN. I ran 4.5 to 5.0 red dot or promo. Depending on your recoil spring you may have to stay at 5 to make it reliable. I also use a lot of titegroup.

I don't shoot 45 ACP anymore but looking at my data I was "crimping" to .470 for my Glock 30, and 230gr RN was 1.200" to 1.210" and 200gr SWC 1.200" to 1.225". That came from a couple books. I had an aftermarket recoil spring that would cause FTF with to light of loads but I never had any other problems. Even the factory recoil springs are tight on them being double, I had loads that worked in my kimber that wouldn't work in my Glock 30 with factory spring.

[edadmartin]

Doug guy, I went to the range and with the new reloads was able to shoot all 30 without any ftf, also shot 60 factory ball ammo with out any fails. So I guess this glock is picky with reloads and the col of 1.245+- works well. I got your pm about throating thanks. What exactly does throating accomplish??? Im not sure if it is necessary or not. Speaking to the KKM of course.

[edadmartin]

This last batch I did double check and adjust FC to .468 .469, so maybe you are correct that the kkm barrel is tight, any way I believe the problem is under control. Oh-- I wonder if a .451 bullet would be preferable for the finicky glock over a .452?? thanks for the help .

[Love Life]

Maybe. Try it out and see.

[DougGuy]

It is likely a .451" will resolve the issue. However, many shooters choose to use .452" because it seals in the bore better if the bore is .451" or larger.

When you have a ftf because the slide doesn't go all the way into battery, it usually means the stoppage is because the boolit doesn't go far enough into the barrel's throat (the smooth part between the end of the chamber and the rifling). The boolit could be a little out of rounds, it could be a little tight if it has excess lube in front of the case mouth, it could be fouling build-up in the throat, the boolit may be canted a little off center in the case, or a combination of things.

Here is a pic of an SA 1911 compact barrel before and after throating. The owner had almost a thousand rounds of .452" reloads that would not chamber reliably, after throating all the rounds pass the plunk test and he has had 0% ftf afterwards. For $20 + shipping.

The left photo shows the stock barrel, with the rifling beginning almost abruptly at the end of the chamber. the photo on the right shows the rifling has been reamed away back about .185" from the chamber mouth, and there is an area of smooth bore that measures .4525" between the chamber mouth and the rifling. This is what the term "throating" the barrel is describing. The throat, is that ring of smooth bore just in front of the chamber.

It may be of note here, that a "match grade" barrel will be on the tight side of specs for the .45 ACP cartridge. They may have a throat that will only accept a boolit of .451" diameter. My Kahr CW45 is made this way, it won't begin to chamber a round with a .452" boolit. So if you order a match grade barrel, or get a .45 with one fitted to it already, chances are it won't chamber a .452" boolit until the throat is addressed.

http://i1202.photobucket.com/albums/bb374/DougGuy/Cylinder%20Services/Both1_zps194dd462.jpg (http://s1202.photobucket.com/user/DougGuy/media/Cylinder%20Services/Both1_zps194dd462.jpg.html)

As far as the dimensions of the throat, I like to see a .4525" pin gage go at least .125" into the throat, this will accept a .452" boolit with a little fouling, or a little lube, without causing a stoppage. I have not seen where the length of the freebore (throat) affects accuracy or leading issues, and some of them are .220" between the chamber ledge and the beginning of rifling! Apparently this dimension isn't super important as long as the boolit goes in the throat without issue.

Edit:

The KKM barrel I posted a photo of earlier in this thread was from a guy who wanted to run .45 Super through it, and he wanted to seat out long so the throat in that barrel is a full .250" at his request. He says it shoots great and it's very accurate and doesn't lead.

The photo of the boolits below are dummy rounds that people have sent me along with their barrels for a go/no-go gauge. Castboolits forum member C.latch sent the one with the Hornady 300gr XTP seated in the case, and it feeds with no issues. All these are .452" boolits, the two on the left are some that I have had forever, I used those in different competitions in years gone past. The full wadcutter was used in a T/C with a Bullberry barrel, and yes the throat in that barrel was specially done to accept the COA of the full wadcutter as you see it here.

Barrels with a throat like the SA on the right hand side of the above photo will gobble up all these rounds with no stoppages.

http://i1202.photobucket.com/albums/bb374/DougGuy/Cylinder%20Services/DSC03146_zps7d63b486.jpg (http://s1202.photobucket.com/user/DougGuy/media/Cylinder%20Services/DSC03146_zps7d63b486.jpg.html)