https://systemz.online/general-discussion/30-06-130-gr-bullet/ AllGunStuff Discussion Board en-US Fri, 08 May 2026 07:09:08 +0000 wpForo 60 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2790 Mon, 31 Jul 2023 09:56:10 +0000
Gerrie might not have implied it, but most people giving advice on how to load them did.

That said. The main reason people are advised to go one weight class down when changing from lead core to monometal is that some rifle barrels do not have a fast enough twist rate to stabilise the longer bullets. Also as mentioned previously you need a higher impact velocity for adequate expansion when shooting the GSCustoms. This is where Gerrie's "faster is better" comes from.

The molycoating was necessary to reduce the copper fouling caused by his patented "micro grooving". The other results were just side effects.

On a side note. Using coated bullets does save the throat a bit from advancing, but does not reduce the damage (fire cracking) caused by heat.

***************************
see you know your shit ey !
]]> General Discussion Treeman https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2790 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2788 Sun, 30 Jul 2023 17:59:13 +0000
That said. The main reason people are advised to go one weight class down when changing from lead core to monometal is that some rifle barrels do not have a fast enough twist rate to stabilise the longer bullets. Also as mentioned previously you need a higher impact velocity for adequate expansion when shooting the GSCustoms. This is where Gerrie's "faster is better" comes from.

The molycoating was necessary to reduce the copper fouling caused by his patented "micro grooving". The other results were just side effects.

On a side note. Using coated bullets does save the throat a bit from advancing, but does not reduce the damage (fire cracking) caused by heat.]]> General Discussion janfred https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2788 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2787 Sun, 30 Jul 2023 10:55:08 +0000


In practice there is no evidence that barrels lasted longer when using GS Custom bullets as opposed to normal jacketed bullets.

****************************
Simply because reduced pressure = reduced delivery, therefore pressure needs to be upped to gain the potential velocity available which then takes you back to same pressures, but for higher velocities.
To be fair Gerrie does quiet openly admit to this and states somewhere, " or you can just shoot these bullets at standard velocity and gain / save barrel life"
No free lunch's were ever implied by the man.]]> General Discussion Treeman https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2787 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2786 Sun, 30 Jul 2023 06:36:32 +0000
The coatings may help in reducing the inbore friction but this then reduced velocity, requiring more powder to offset the loss of velocity. I.e. to get the speed you need pressure; coating reduce the pressure therby the temperature; less pressure gives less speed; you need to add more powder to increase the pressure; higher pressure give higher speed but also higher temperature. Zero sum game at the end of the day.

In practice there is no evidence that barrels lasted longer when using GS Custom bullets as opposed to normal jacketed bullets.]]> General Discussion janfred https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2786 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2785 Sun, 30 Jul 2023 06:15:00 +0000
Momentum = mv Gives an idea of penetration potential. Heavier bullet makes the product bigger, whilst speed also plays a role

SD = bullet weight in pounds divided by diameter squared. Longer bullet per fixed diameter is heavier and thus helps penetration

The fact that a monometal bullet does not break up, is longer due to the lower specific mass of copper and can then be driven faster ensures adequate penetration and damage to the internal organs.]]> General Discussion Tripodmvr https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2785 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2784 Sun, 30 Jul 2023 03:49:22 +0000 General Discussion Treeman https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2784 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2783 Sun, 30 Jul 2023 03:46:12 +0000
How does that accord with Gerrie Schultz's doctrine that lighter bullets do better?

************************
Lot faster bullets.
I think energy is velocity x weight = kinetic energy ? So if the bullet gets to have a higher velocity gained by reduced weight then it can equal or exceed the slower heavier bullets energy. Its all a trade off.

Gerry's main thing was propriety coatings that reduced barrel friction, which reduced start up pressures on firing. By lowering or sometimes almost removing resistance on ignition,the first few millimeters, the pressure spike that blows chambers up was flattened out and loads could be increased which then cheated a bit on the velocity gains achieved by the lighter bullets, making them even faster. This higher than uncoated bullets velocities then delivered even flatter shooting bullets with a slight gain in energy over uncoated bullets.
It is believed that the reduced barrel time and reduced chamber flame, pressure time also reduced throat burn out.
]]> General Discussion Treeman https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2783 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2782 Sat, 29 Jul 2023 12:01:50 +0000 General Discussion Ds J https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2782 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2781 Sat, 29 Jul 2023 11:51:05 +0000 General Discussion Tripodmvr https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2781 https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2780 Sat, 29 Jul 2023 11:44:48 +0000
Ruger 3006 150TSX Ballistics.png 

]]> General Discussion Tripodmvr https://systemz.online/general-discussion/30-06-130-gr-bullet/#post-2780