[geminemesis]

Please read my paragraph 4.6” KKM
450 SMC is only 1030 FPS with 255gr in 5”
I am not having any issues from 8.0 to 9.0 with PP and 250gr that runs 1000 fps to 1100 fps so I split the difference at 8.5grs and decided that’s my load.
View attachment 297420

Pressures = Box Velocity 👍🏼

 

[geminemesis]

Berry's Plated 250gn FN
Starline 45super Nickel full case resized .469"-.471"
Regular Federal Primers
Absolutely No Crimp

Longshot
8.3gn Avg1071fps/ 637FPE/ 17.3TKO
9.0gn Avg1137fps/ 718FPE/ 18.4TKO
9.4gn Avg1194fps/ 792FPE/ 19.3TKO
9.8gn Avg1240fps/ 854FPE/ 20TKO

Using a 4.5" KKM Threaded barrel. Keep in mind I am using a 4.5lbs striker spring.
There was no issues with overpressure whatsoever. I can still go much higher than this. Next time I'm going to try an even 10 grains.
Recoil was manageable with my Glock 30s. I was using a 15lb recoil spring in conjunction with a KAK 27 port comp. All rounds cycled beautifully, however, I was having issues chambering the first round. For some reason it would keep getting stuck. Every time I tried to chamber. I think that these bullets do not do well with a full mag. Once the magazine is loaded over a certain capacity, the rounds do not stack like they should ant. The nose of the first few rounds is dipping low. Once I expel the first few rounds, I can chamber without a problem. This explains why I don't have problems cycling, but only when chambering. This seems to be an issue only if the magazine is going to be back up, however, as long as I chamber the first round the rest of the magazine will cycle perfectly well.

 

[Red-Team-98]

Suggest TTI + 4 in magazine no extension 13 round Glock mags reduce round count by 1 to 12 rounds but excellent feeding. I decided the 8.6 Power Pistol with 250gr was enough without comp in 4.6” KKM. Long Shot is another great powder in 45 Super with load data very similar at 9.0 with 250gr I consider max in G21 with slightly more velocity than PP.

8.6 of PP
4.6” KKM 1062 fps
5.2” KKM 1083 FPS
G21 Gen 4
22 Pound Spring Pure Tungsten Rod
The 5.2” will definitely be installed for the 250gr Hardcast this Season.

8.8 of PP with 255gr Keith SWC Hardcast 18BHN Tek Coated with Lee Factory Crimp

 

[geminemesis]

Suggest + 4 in magazine no extension 13 round Glock mags reduce round count by 1 to 12 rounds but excellent feeding

Thats not my issue. I have 12coil ETS springs in both a ETS and factory 13rd mag. The 13th round is very tight, similar to the 10rd mags, but it will fit and the mag needs to be inserted to a open slide to strip the 1st round. 12+1 only in the factory mag. The ETS mag does fit 13+1 perfectly.
I also have 18rd ETS mags with a highly advanced dual spring setup. They hold 17rds well and will cycle 255gn 45super using no comp. My 9rd mags with a LW basepad use 9 coil springs like the 10rd mags. I think they are way better than the factory 10 round mags that come with the G30. For flush 9rd mags I use 8coil springs. I have 2 ETS, they are provided with 8coil springs. The factory nine round magazine actually functions way better with eight coils. The final round is not so tight and I can actually do 9 + 1. I further fabricated the follower to make it smaller and it made it better.
Factory 10 run mags are fine the way they are. I prefer to use the plain Factory base plate on them. I think I have seen aftermarket base pads for them but they are very expensive.
The issue that I am having is that the Berry's 250 grain bullets have a very wide meplat and they don't fit in the magazine well when it is fully loaded. They kind of force the bullets straight when they should be pointing upwards to be chambered. Reducing the magazine by three or four rounds corrects the issue.

 

[Red-Team-98]

Wider Mel plate up front will do that !
I use the Straight Shoooters hard cast RNFP 250 gr Tek coated no issue in feeding very similar to underwood 255gr load. 22 BHN @ 1.190” same length as underwood for coal

 

[geminemesis]

Wider Mel plate up front will do that !
I use the Straight Shoooters hard cast RNFP 250 gr Tek coated no issue in feeding very similar to underwood 255gr load. 22 BHN @ 1.190” same length as underwood for coal View attachment 297545

I will just stagger them with XTPs. 😁

 

[Red-Team-98]

I will just stagger them with XTPs. 😁

Here the bears are too big !
No Hollow Points !
But that 240 and 250 XTP are great choices for thin skin game.
Only 13 Round Gen 4 Glock Magazines for me with plus 4 mag springs!

 

[geminemesis]

Here the bears are too big !
No Hollow Points !
But that 240 and 250 XTP are great choices for thin skin game
Only 13 Round Gen 4 Glock Magazines for me with plus 4 mag springs!

Where you get your mag springs from? TTI? They are the only ones that I know of that have +4 mag springs, which I assume you mean 12 coil springs. I know that the 11 coil wolf Springs aren't enough. I cut ETS springs down to 12 coils. They would normally work in the 18rd mags, but the are originally 14 or 15 coils long to accommodate a +4 with the 18rd mag for 22 rounds.
I never used the 13rd mags. They always FTF, but I recently tried the 12 coil and it worked. I was happy with my 18rd ETS with my 2 stage system. 100% reliable with 45super at 17rds max.

 

[Red-Team-98]

Where you get your mag springs from? TTI? They are the only ones that I know of that have +4 mag springs, which I assume you mean 12 coil springs. I know that the 11 coil wolf Springs aren't enough. I cut ETS springs down to 12 coils. They would normally work in the 18rd mags, but the are originally 14 or 15 coils long to accommodate a +4 with the 18rd mag for 22 rounds.
I never used the 13rd mags. They always FTF, but I recently tried the 12 coil and it worked. I was happy with my 18rd ETS with my 2 stage system. 100% reliable with 45super at 17rds max.

Taran Tactical Innovations

Gunsmith, Base Pad, Basepads, Firearms, John Wick, Glock, Taran Tactical

tarantacticalinnovations.com

For Gen 4 Glock 21 -13 Round magazine plus 4 springs with no extension.
Yes TTI
12+1

 

[Red-Team-98]

TTI for plus 4 mag springs in 13 round .
Also 460 Rowland has springs as well !
The Wolff Extra Power are only 5% in 13 round mag but 10% in the 10 round magazine.
So the Wolff Extra Power work good in 10 round mag for 45 Super in G21 for 9+1

 

[geminemesis]

Taran Tactical Innovations

Gunsmith, Base Pad, Basepads, Firearms, John Wick, Glock, Taran Tactical

tarantacticalinnovations.com

For Gen 4 Glock 21 -13 Round magazine plus 4 springs with no extension.
Yes TTI
12+1

That's awesome, I didn't know that they sold the Springs individually, I thought that you had to buy the base with it. I'm going to check them out. It's much better than trying to get an ETS spring. It's okay cuz I had spare one since I use Glock Springs in the ETS mags anyways.
Do you really only fit 12 rounds or is the 13 one very tight. I can get a 13th one in but I would not be able to do 13+1 since it is in there so tight. I can at least insert the mag with the slide open and chamber the 13th round instead of doing funny things to get 12+1. However, I did cut off the wing on the back of the follower. I will be looking for gen 1 magazines in the future instead of Gen 2. By modifying the follower on the Gen. 1. Maxx I can use Gen 2 Springs and have a much better fit and more room for the rounds inside. Other than that, ETS mags are still my favorite. I have the 13 round ETS mag also with a 12 coil spring and it works great. I can do 13+1 no problem with it and it is 100% reliable. There may be some some type of bullets that will not be reliable with it, but it will be very rare. The 250 grain Berry's had issues and both the ETS and Glock Factory mags the same.

 

[Red-Team-98]

250gr RNFN Tek Coated 22 BhN

 

[Red-Team-98]

That's awesome, I didn't know that they sold the Springs individually, I thought that you had to buy the base with it. I'm going to check them out. It's much better than trying to get an ETS spring. It's okay cuz I had spare one since I use Glock Springs in the ETS mags anyways.
Do you really only fit 12 rounds or is the 13 one very tight. I can get a 13th one in but I would not be able to do 13+1 since it is in there so tight. I can at least insert the mag with the slide open and chamber the 13th round instead of doing funny things to get 12+1. However, I did cut off the wing on the back of the follower. I will be looking for gen 1 magazines in the future instead of Gen 2. By modifying the follower on the Gen. 1. Maxx I can use Gen 2 Springs and have a much better fit and more room for the rounds inside. Other than that, ETS mags are still my favorite. I have the 13 round ETS mag also with a 12 coil spring and it works great. I can do 13+1 no problem with it and it is 100% reliable. There may be some some type of bullets that will not be reliable with it, but it will be very rare. The 250 grain Berry's had issues and both the ETS and Glock Factory mags the same.

12+1
With + 4 TTI springs in Gen 4 13 round mags. That 13 round is too tight !

also 460 Rowland has their spring but cost about twice as much for the 13 Round Glock mag.

my bullet profile is the same profile as Underwood 255gr which I beleve is also 250gr in actual weight at 1.190”

 

[Red-Team-98]

That's awesome, I didn't know that they sold the Springs individually, I thought that you had to buy the base with it. I'm going to check them out. It's much better than trying to get an ETS spring. It's okay cuz I had spare one since I use Glock Springs in the ETS mags anyways.
Do you really only fit 12 rounds or is the 13 one very tight. I can get a 13th one in but I would not be able to do 13+1 since it is in there so tight. I can at least insert the mag with the slide open and chamber the 13th round instead of doing funny things to get 12+1. However, I did cut off the wing on the back of the follower. I will be looking for gen 1 magazines in the future instead of Gen 2. By modifying the follower on the Gen. 1. Maxx I can use Gen 2 Springs and have a much better fit and more room for the rounds inside. Other than that, ETS mags are still my favorite. I have the 13 round ETS mag also with a 12 coil spring and it works great. I can do 13+1 no problem with it and it is 100% reliable. There may be some some type of bullets that will not be reliable with it, but it will be very rare. The 250 grain Berry's had issues and both the ETS and Glock Factory mags the same.

12+1 with TTI +4 mag springs in 13 Round Glock magazine suggest Gen 4 magazines for the use. I only use 22 BHN Hardcast for Bear 250/255gr
Straight Shooters Hard Cast Tek coated .

 

[geminemesis]

12+1 with TTI +4 mag springs in 13 Round Glock magazine suggest Gen 4 magazines for the use. I only use 22 BHN Hardcast for Bear 250/255gr
Straight Shooters Hard Cast Tek coated .

I actually prefer the 13rd ETS mag. With the +4 spring still allows 13+1 with alot of room. I also use the 18rd ETS mags with two 8 coil springs for 17+1 and will cycle supers.

 

[geminemesis]

Got some 185gr XTPs. 12 grains of Longshot, 1.228", Winchester 45ACP, Fed LPP, No crimp, '""_supposed to be around 1450fps. Box says recommended velocity up to 1500. I just found out that Rem LRP 9 1/2 fit 45auto and handle more pressure than LPP. So there is another option.

I got a Wolff Calibration Pack and I was testing each set. It appears that every spring is 2lbs lower than the listed weight. 15lbs are actually 13lbs. I can't believe I ran 250gr at 1150-1250fps with it. Cases were going 8-12ft using the KAK comp. I will be using the 19lbs next time, which is actually 17lbs. I think that it might be to heavy and I will have to use the 17lbs spring for 15lbs actual.
Another thing. I had a 6.5lbs striker spring and the recoil springs were to weak during the spring 45° test, the 19lbs(17lbs) was the minimum to pass the test. I put the Glock 5.5lbs back on and all the recoil springs passed the testing, even the 15lbs(13lbs). Honestly, that was quite shocking to me.