Inspired by Taffin

Are you going to try to make a holster for that or just use the strap as an over the shoulder kind of thing?

SS,

www.glocktalk.com/forums/showthread.php?t=938598

Thought you might find this interesting. Specifically the comments by DesertScout. I've been reading a lot about the glock 10mm and found this thread a few nights ago. Given that you've got a G21 and will be hunting with it,....well, food for thought. Good luck with the .45.

Interesting. On one hand I am amazed what can be done with these. It's neat to see people experimenting with different ctgs and loads.

On the other I'm still fearful of something bad happening. Even with a spring change to make it cycle without beating up the pistol on the first stroke,......there is extra torque and stress put on that handgun,....and it's not all metal.

Interesting. Did you ever ask your glock guy about the non supported barrel thing? That is why they don't offer them?

KKM, Lonewolf,.......etc, etc, etc. are all more supported than factory glock chamber which has a tendency to have other issues as well.

Agreed that more support (or more precise chamber) means possible feeding problems.

I to was inspired by Mr. Taffin and did a similar series if tests last spring with my slightly modified 1911. Here’s my write up, copied from the 1911fourm:


45 acp heavy loads

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After reading John Taffin’s articles on loading the 45 acp to original 45 colt spec’s with 250/260 gr. Lead SWC bullets and reading all the post’s on the 1911forum about it. I decided to try it myself.

My test gun is my old Springfield “Loaded” 1911 stainless. This is my USPSA Single stack/limited 10 gun and has been modified for competition with a trigger job, mag well, checkering, fiber optic sight, EGW firing pin stop, etc. The only change I made to it was to change out the recoil spring for an ISMI 20 lb. (heaviest one I had on hand).

I contacted a friend I met on brasstrader.com who casts very good bullets, and he had both the Lyman 250 gr. And the RCBS 260 gr. Molds and was willing to send me a sample of each for some brass I didn’t need.

Mr. Taffin always used Unique to fuel his “heavy” acp loads but I always thought there were better powder choices, so I settled on three to try.
Winchester Super Field, served me well in the 40 S&W with 200 gr. Bullets loaded to the old USPSA power factor.
Blue Dot, has been my go to powder for over twenty years for high velocity loads in the 9mm, 40 S&W and 45 acp.
Accurate No. 7, because I had some sitting in the powder locker and I found loading data for it.

WSF: I was on my own here as I could find no data at all for anything heaver than 240 gr. JHP’s. I worked up to 6.0 gr. Showing 890 f.p.s. with both bullets but accuracy just was not there.

Blue Dot: This was a real disappointment as I experienced three jams where the slide closed before the rim of the cartridge was in front of the breach face. Although the brass showed no sign of excessive pressures the apparent extreme slide velocity stopped further testing.

Accurate No. 7: This was a real shocker as the only load tested was what I felt to be a good start load of 0.5 gr. under suggested load in the data I could find. Velocity was way over what I expected and accuracy (especially with the RCBS 260 gr. Bullet) was better than I can normally do with open sights. I feel a new can of No. 7 needs to be acquired and further tests run.

All the ammo was loaded in Federal brass with Winchester primers to an OAL of 1.200 (ten shot strings). All the brass was ejected 8-10 feet away and none of the empty cases showed signs of excessive pressure. Target was at 50 yards.

Lyman 250 gr. SWC:
6.0 gr. WSF Vel. 890 f.p.s. ES. 43 SD. 15 group size 7.5”
10.0 gr. No. 7 Vel. 940 f.p.s. ES. 50 SD. 15 group size 5.2”
8.2 gr. Blue Dot Vel. 850 f.p.s. ES. 43 SD 14 group size 7”

RCBS 260 gr. SWC:
6.0 gr. WSF Vel. 890 f.p.s. ES. 22 SD. 6 group size 9”
10.0 gr. No. 7 Vel. 940 f.p.s. ES. 43 SD. 12 group size 4.25”
8.2 gr. Blue Dot Vel. 890 f.p.s. ES. 78 SD 23 group size 7”

I feel this further proves what Mr. Taffin said in his articles about the 45 acp being capable of doing anything the original 45 Colt load could do.

The sad thing is, that here in Pennsylvania, shooting any critter for any reason with an auto loading handgun will get you a fine and your gun confiscated by the game commission. Of course, everybody throws in the qualifying statement “only if your caught” but I don’t like to take chances with the game nazi….er…wardens.

As always, this data is safe in my gun. Experiment at your own risk.

Cheers.

Jeff

PS Sorry for not posting any pics but my camera died.

That's exactly the type of thing I have been mulling over and fiddling with for years but never seem to have enough time to get it all done. I haven't read JT's article, but I just thought from reading John Linebaugh's writings about how a 250-260 grain 45 slug could cleanly take deer to 100 yards... well, why not load the 45 auto with a heavier bullet? I mean, Speer 11 and 12 both list 45 auto loads with their 260 grain jhp. I've read that thread on GT several times and the links posted there also.

I've messed with 250 grain hardcast rnfp and Beartooth 265 grain WFNGC bullets but I'm not satisfied yet. I set up a G21sf with a LW 6" barrel with the little 4 ports along the top, a 22# recoil spring and steel guide rod. I use 45 Super brass and CCI 300 primers. Not set to share data. But I have been messing with AA7, Blue Dot, Universal, 3N37 and AA9. Have wondered about Longshot and True Blue as well. So much testing to do; so little time.