45 acp heavier loads

[BLUEDOT37]

IMHO the only difference between Plus P and regular cases is the marking.

This is what Starline told me, there is no difference in THEIRS except for the marking.

.

No idea why someone at Starline would tell you that when their website clearly says otherwise:

45 Auto +P Brass - Large Pistol - Brass Cases

#1520 - 45 Auto +P Brass (Large Pistol primer)
--------------------------------------------------------
The 45 Auto+P is a strengthened version of the 45 Auto with the same external dimensions.
A thicker web and heavier sidewall at base strengthens the case in potentially unsupported areas.
This case has approximately 2 grains less internal water capacity than the standard 45 Auto.

.

Okay, here's the numbers as I see them:

I just went thru my range find brass & came up with some S-L 45ACP (+P) that I was unaware of & measured a couple.

The (empty) S-L 45 ACP (+P) brass is (surprisingly) heavier, at 90.4gr, than either their 45 ACP or 45 Super brass & holds 26.4gr/H²O.

S-L 45 ACP & 45 AR case have virtually the same capacity/volume, 27.3 -vs- 27.4gr/H²O, respectively.

S-L 45 Super (empty) brass is heavier than their 45 ACP brass (87.4gr -vs- 79.1gr) & holds 1.8% less at 26.8gr/H²O.

.

I can only surmise that their 45 Super cases uses a different brass metallurgy that's stronger, but lighter, (they are the most expenses of all four) than what they use in the 45 ACP cases & that they use more of it in the (+P) cases which give them the extra strength & weight, but less capacity.

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[BLUEDOT37]

But 45 ACP bullets are made for 45 ACP velocities.

Don't sell all 45 ACP bullets short.

Hornady lists the rated muzzle velocity range for their .451" 230gr XTP & HAP bullets at 600-1650 fps. Plenty fast enough for any 45ACP revolver/pistol loads.

I don't know what Zero rates their .451" 230gr JHPs at but I shoot them in my reduced 460 Mag loads with 26.0gr. of 2400.

.

 

[BillBro]

Well someone at Starline fibbed to me then. They said there was no difference between the regular and +p cases. I'm more inclined to believe folks here, believe it or not.

 

[ddixie884]

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#1520 - 45 Auto +P Brass (Large Pistol primer)
--------------------------------------------------------
The 45 Auto+P is a strengthened version of the 45 Auto with the same external dimensions.
A thicker web and heavier sidewall at base strengthens the case in potentially unsupported areas.
This case has approximately 2 grains less internal water capacity than the standard 45 Auto.

.

Okay, here's the numbers as I see them:

I just went thru my range find brass & came up with some S-L 45ACP (+P) that I was unaware of & measured a couple.

The (empty) S-L 45 ACP (+P) brass is (surprisingly) heavier, at 90.4gr, than either their 45 ACP or 45 Super brass & holds 26.4gr/H²O.



.

I can only surmise that their 45 Super cases uses a different brass metallurgy that's stronger, but lighter, (they are the most expenses of all four) than what they use in the 45 ACP cases & that they use more of it in the (+P) cases which give them the extra strength & weight, but less capacity.

.

Great info. You often have very good info to share. THANX..........

 

[johngalt]

There are gunsmiths that rechamber the 625 to shoot 460 Rowland, which is 40,000 psi. From that, I suspect that it can handle .45 +P.

 

[BillBro]

.

No idea why someone at Starline would tell you that when their website clearly says otherwise:

45 Auto +P Brass - Large Pistol - Brass Cases

#1520 - 45 Auto +P Brass (Large Pistol primer)
--------------------------------------------------------
The 45 Auto+P is a strengthened version of the 45 Auto with the same external dimensions.
A thicker web and heavier sidewall at base strengthens the case in potentially unsupported areas.
This case has approximately 2 grains less internal water capacity than the standard 45 Auto.

.

Okay, here's the numbers as I see them:

I just went thru my range find brass & came up with some S-L 45ACP (+P) that I was unaware of & measured a couple.

The (empty) S-L 45 ACP (+P) brass is (surprisingly) heavier, at 90.4gr, than either their 45 ACP or 45 Super brass & holds 26.4gr/H²O.



.

I can only surmise that their 45 Super cases uses a different brass metallurgy that's stronger, but lighter, (they are the most expenses of all four) than what they use in the 45 ACP cases & that they use more of it in the (+P) cases which give them the extra strength & weight, but less capacity.

.

Maybe I called Starbucks?