6.5 PRC Sherman Improved

wasskeet said:

As far as I know, I think the reamer Travis @ TS Customs used is a .105" freebore. As for loading, just a simple neck down - I used a .269" bushing on Lapua brass. I think @Huntnful uses a .270"? For a wildcat, this one is about as simple as it gets. Check out this link to Huntnful's journey with it - he gives far more detail and some kills with it.

6 PRC

Have spent just a little time behind this cartridge now. Rifle was built by TS Custom. KS1 Adjustable Stock Bartlein 7.5 twist 24” Rem Varmint Lone peak Fuzion Alpine cut M5 with hinged floor plate March FX 4.5-28X52 I’ve only tested H4831SC so far because I like how consistent and clean...

www.longrangehunting.com

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bowhunter1287 said:

Any new load data 6.5 prc/si and not the 6 prc

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bsnyder said:

I can add my personal build has been completed for about 9 months it's taken two antelope and have tried a couple different pills. This gun is a 20 inch 7.5 twist it's since changed scopes

I will more than likely play with 140 eldms this winter after elk season and 135 jlk's and possibly the 153 atips and 140 vld's.

61.5 grains of n560 and 135 atips 3148 fps
60 grains of n560 and 147 eldms both seated to 2.950 3015fps

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5RWill said:

Some great velocities for such a short build!

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highdrum said:

Yeah agreed with great velocity comes great pressure!

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bsnyder said:

You're more than welcome to come shoot it. 5 firings on the brass pockets are still tight. It's also a hunting gun so yeah it's up there in pressure but I have no swipe or bolt lift.

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bsnyder said:

@lancetkenyon has and has all that info in his prc si thread.

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highdrum said:

I'll have to dig through it more. I found a comparison of virgin brass to FF improved brass, but never saw a capacity of FF lapua 65prc.

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lancetkenyon said:

Fire formed 6.5PRC AW2 case
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Filled w. Water
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6.5PRC water capacity
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Empty primed fire formed 6.5PRC/SI case
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Filled w. Water
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Difference/water capacity
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Case improvement 2.8gr water capacity (4.2%)

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highdrum said:

So roughly 2.5-3% increase in velocity ceiling with the 4% capacity change? That's a much higher ratio than a lot of other improved designs. Solid results.........

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