zzt
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Posts posted by zzt
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43 minutes ago, LHshooter said:
P.s. the only way I'll ever get a sub 0.1 split is in my dreams.
my 65 year old finger will never move that fast.
I'm 76 and mine does. Work on it.
BTW, I should have mentioned that N320 is very much better than TiteGroup for ports.
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Well, I'm number 1 minus. I've never shot outside my Area. If fact, I've never shot USPSA outside my State. I no longer shoot LII and LIII matches because I don't like how they are run. SCSA is a different story. I don't care one whit about Classification anymore. For years the clubs I shoot at had Classifiers requiring weak hand shooting. Mine does not work properly. Now there are New Classifiers that involve movement and are more like regular stages. I might regain interest.
As far as slots go, my main club was begging people to take slots last year. They didn't all get used.
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There is a difference between a ported barrel and a compensator. With a compensator, you definitely want more gas. More gas, up to a point, makes the gun shoot softer.
Barrel ports work differently. They make the gun shoot flatter, and a tad softer. Flatter because you are directing a portion of the propellent gasses up to counted muzzle rise. Softer because the portion directed up cannot jet out the front of the barrel. So, there is less recoil.
Shooting factory 115 9mm or 124 out of your ported barrel will work just fine.
Since you have N320 and 124s, use the published max load. I personally think that is the best trade off. You can try loading some of your CFE. You will produce more gas. The gun will shoot a little flatter, but will hit your hand harder. Not worth it IMO. I shoot the equivalent of the N320 load and the muzzle barely rises. You can do splits under 0.1 seconds and everything lands in the A zone.
PFs of 140+ are not going to be as good as 132 PF. a 115 @ 1130/1150 if fine. So is a 124 @ 1050. I don't like 147s. The slide seems to take so long to close I could take a nap in between shots. If you are shooting knock down steel, 147s are good. For quick double taps you want 115s or 124s.
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Seating and crimping in two steps are key if you have a 5-staion or more press. The Lee FCD does a splendid job of crimping and sizing the neck.
As I mentioned, you could have your Hellcat barrel throated. Inexpensive. About $20 if your gunsmith already has the reamer.
Chasing single digit SDs is touch. You have a start in using same HS brass. If your operation of the press is smooth, that is another plus. Next is seating. Several bullets and shapes will not seat to a constant OAL. That makes a difference. Then there is powder. You have been told that using CFE for 132 PF loads is not optimal. If you make a ladder of loads from 132 PF up through 144 PF, you should see a continuing improvement in SDs as the PF goes up. More pressure equals a better, cleaner, more complete burn.
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If the PCC and Walther are happy with the OAL you were using, throat the Hellcat barrel so it takes the same.
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Running a buffer just short strokes the slide. I don't use them. What don't you like about your 11 lb. spring? As long as ejection and feeding are 100% and the gun returns to zero, why change. If the muzzle dips when the slide closes, go to the next lighter spring until it doesn't. If the muzzle returns high, you need a heavier spring.
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53 minutes ago, PaleoMan said:
For the OAL, will I know it is hitting the lands, by the round not fully seating in the chamber?
If you cannot spin the round in the chamber with your fingers, it is touching the lands. Alternately, you can plunk one of your shorter OAL rounds in to see where the case end rests. The do the same with longer OALs and see where they land.
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I'm with Zack. I'm Distinguished Senior also. Fortunately, even though the peak time adjustment took away a bunch of faster 2021 times, I still maintain Class. If I could not, I'd ask for a reclassification. If I were a GM/M it would be embarrassing to see my name under a bunch of A and B shooters in Overall.
Several shooters I shoot with have this philosophy. If peak adjustment knocks them down a Class, they maintain it as long as they improve enough during the season to be legit.
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If USPSA falls by the wayside, all three clubs I shoot USPSA at would continue to hold USPSA style matches using those rules. Heck. Half the shooters would prefer no classifiers at all. Half of the other half are fine with them, as long as they are the newer ones with movement.
As I mentioned earlier, if an outlaw match adheres to USPSA rules, I'm fine with it. I did shoot one outlaw match at a club I will never go to again. A shooter uncased his PCC while up range, held it horizontally and loaded it while walking to the start box. He swept three people including a friend. When my friend reported this to the MD, expecting a DQ, he was told they play by big boy rules. No DQ. We have never shot there since.
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The only gun I could shoot in two divisions is LO, then Open. They have to make LO legal first.
As far as two gun shooters, we do it all the time. The club I shoot SCSA at allows two guns per shooter, even though the match is held on two days. Some people want to shoot more than two guns.
I am almost always on a squad with four or five additional shooters, all shooting two guns. We run through once, then again for the second gun. It goes like clockwork. Sure, the Timing or Scoring RO has to help out with painting sometimes, but it doesn't hold anything up. We never hold the next squad up unless we were significantly held up by a previous squad. If a club only allows one gun, I don't bother going.
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Precision makes nice coated bullets. So, I don't think it is them. I have tried to make one 9mm minor round that was perfect in both the PCC and pistol. Hasn't worked out.
Try this. Take ten sized and deprimed cases. Seat a bullet at 1.150" OAL. Drop it into the chamber. If the bullet rests on the lands, decrease the OAL until it does not. That will be the max OAL you can use for that bullet in that gun. Load the other 9 cases to the same OAL. Load them in a mag and cycle them trough the PCC. Make sure you slingshot the charging handle so you get the maximum force going forward. Measure the OAL when finished to see if there is any setback. If no, you are good to go.
If yes, experiment with shorter OALs. Magic marker your feed ramp if there is one. If not, mark the chamfer around the chamber and the rear of the barrel. You want to see where the bullet nose is striking. Adjust OAL until the bullet feeds directly into the chamber. If you have a feed ramp, the bullet should strike halfway up.
I'm willing to bet that you get occasional setback with your short OAL. Setback increases the pressure and the resultant velocity. That is going to raise your SDs. I seat and crimp in separate operations using the Lee FCD crimp die. I now have zero setback issues.
CFE burns at the same rate as AutoComp. It is the fastest of the Open major powders. Try selling it to an Open shooter. Powders like Sport Pistol, N320 or Competition are muck better suited to minor loads. You keep the pressure up for 124/5gr 132 PF loads and get a much cleaner, more consistent burn. Any of these powders will reduce your SDs.
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15 hours ago, aandabooks said:
make sure you get in your 7 matches and 4 classifiers
That explains what happened at on club I shoot at. The members wanted alternating USPSA and SCSA matches. They shoot Mar thru Nov. 9 matches. They did that for a while and USPSA said nope. Shoot more USPSA matches. So now they have 9 USPSA matches and SCSA only on months with a 5th Saturday.
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FWIW, my home club is not affiliated with any orgs other than NRA and CMP. I run monthly 2-stage action matches on the pistol (bullseye) range. We use USPSA rules, plus one club rule. We use USPSA and IPSC targets. We use Practiscore for scoring.
I shoot USPSA, so the rule set was a natural. So were the targets. We place barrels at each firing position so shooters may stage their mags. When I first started this, only three of us shot USPSA. We were the only three with holsters and mag pouches. Now, every shooter except one wears a belt with holster and mag pouches. At least nine joined USPSA and now shoot in sanctioned matches. Everyone knows the relevant rules.
Shooting in these matches and following the rules gave these shooters the confidence they needed to shoot sanctioned matches.
Same with our steel matches and the Summer steel league. Surrender draw and SCSA rules. Twelve of our shooters now compete in sanctioned SCSA matches.
So, I don't think hit factor matches or even outlaw matches hurt USPSA as long as you are using their rule set. I think it helps a lot. Plus, you can draw USPSA shooters to them. We have six new to us USPSA shooters now shooting our matches.
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11 hours ago, Sarge said:
Please define “requires” . I run 115’s at 1500+fps with lightened slide and run 8# variable spring
"required" to tune the gun properly. 10 lb. recoil spring, 18 lb. mainspring and 'open' radius on a Cheely firing pin stop contribute to a perfect return to zero after each shot. The gun wears a custom 3-chamber, 6-port comp with two 3/16" poppels in the comp in a V2 configuration. Load is 10.8gr AA7 under a 115 JHP.
Added later: slide action with 7 and 8 lb. springs is too violent. Plus, the muzzle returns high.
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On 1/25/2024 at 1:47 PM, ES13Raven said:
You will find multiple sources that say lighter slide = lighter recoil spring.
That doesn't mean they are correct. They are not.
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Blue for everything. Just make sure everything is clean before applying.
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FWIW, I had two 3/16" poppels put in my main Open gun after testing with the comp alone. I lost 3 PF after the poppels were put in. Shot flatter. Still made major, but I upped the charge anyway.
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51 minutes ago, barry said:
Well the matches seem to fill up same as they did 5 years ago in area8 but I'll take your word for it.
Nope. Faster now. Some are full in 45 seconds. The rest in 60 seconds or so.
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A 5" Prodigy with optic for $1376 and free shipping gives you an awful lot for your money. It is hard to justify spending more for an MPA, especially given their spotty quality.
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6 hours ago, ES13Raven said:
Lighter slide = less reciprocating mass.
Less mass = less spring force needed to slow/stop the rearward moving slide in recoil.
Less mass = less spring force needed to close the forward moving slide.
Only your first sentence is correct. All else equal, a lighter slide will be driven rearward at a higher velocity than a heavier slide. More effort is required to arrest the slide in the space available. More effort equals a heavier recoil spring.
Here is an easy to understand example. A 1911 firing a load that requires a 16 lb. recoil spring. Tap the slide to mount a Picatinny rail, then mount a tubular red dot such as those used by bullseye shooters. You have added several ounces of weight to the slide. You have to drop to a 12 lb. recoil spring to get the now heavier slide to function.
Another example. The slide of my Open gun was lightened from 13 oz. to 10.5 oz. Firing my 115 JHP @ 1520 fps major load requires a 10 lb. recoil spring. Firing a 115 @ 1150 fps factory load requires a 6v recoil spring.
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Most 2011s running 7 or 8 lb. recoil springs are Open guns. Most 2011 slides are heavier than CZ slides. The lighter the slide the heavier the recoil spring for the same PF, everything else being equal.
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Chambers in most PCC barrels are looser than pistols. Even with a retarded operation buffer system, you will still get some soot on the cases. Long barrel or short, it doesn't seem to make a difference.
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If you only shoot JHPs or plated through your comp, it doesn't get dirty. You get a little carbon, but you can still see the machining marks at the bottom of the chambers. If it bothers you, spray in some solvent and wipe it away. The first time I did that I had 12k rounds through it. I also use clean burning powder.
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22 hours ago, RangerTrace said:
The matchwinners are truncated cones with exposed led on the bottom. They have a JHP Im thinking about trying for a couple cents more. I called the LE rep for Hornady yesterday to see if I could get a hook up on some HAPs.
If you are willing to pay the price, Widner's has cases available.
New to Ported Barrels - Would Appreciate Some Tips/Instruction re Ammo
in 9mm/38 Caliber
Posted
We do just that is the training sessions we put on for our USPSA and SCSA shooters. It only works for dry fire, because firing noise drowns out the speakers. It was interesting to me that at the start of the session, some shooters could not draw, acquire the target and fire in 2.4 seconds. We kept at it drill after drill until a majority could beat the buzzer at 1.4 seconds.
Faster splits are simply a matter of tuning your gun to your load. If you have your spring rates set correctly and your gun returns to zero promptly. All you have to do is pull the trigger again, quickly. BYW, I shoot Open major. With Open minor, splits are a just a bit longer.