My new PRS build

[Punkur67]

Just put my new PRS gun together. This is my second one. I learned alot with my first setup. I am very happy with this setup.

-Zues terminus action with QC barrel setup
-6cm prefit Bartlein Heavy Varmint 400MODBB barrel for matches from @Bugholes
-6.5cm prefit Benchmark Heavy Palma barrel for training
- Triggertech diamond trigger
- MPA BA comp chassis with full weight kit
- ZCO 5-27 scope

 

[Punkur67]

First round of load development went good. I am going to run another batch around 42.0-42.2 but i am happy with the velocities and SDs in this range

 

[BadDogPSD]

Nice build!

 

[acudaowner]

it's not nice to drool over another mans wife with lust in your heart but not one mention about his firearm sweet rig congrats insert drooling emoji

 

[Hickswr]

Sweet Rig!! But I just want a copy of your spreadsheet.

 

[Punkur67]

Sweet Rig!! But I just want a copy of your spreadsheet.

Not my spreadsheet. It's the 65 guys one

http://www.65guys.com/wp-content/uploads/2018/06/Load-Analysis-Model-V2.xlsm

 

[huntnh]

I’d love to try the Zeus action! Love the quick barrel change option

 

[bodhisafa]

Just put my new PRS gun together. This is my second one. I learned alot with my first setup. I am very happy with this setup.

-Zues terminus action with QC barrel setup
-6cm prefit Bartlein Heavy Varmint 400MODBB barrel for matches from @Bugholes
-6.5cm prefit Benchmark Heavy Palma barrel for training
- Triggertech diamond trigger
- MPA BA comp chassis with full weight kit
- ZCO 5-27 scope

View attachment 7650274View attachment 7650275View attachment 7650276

What lessons did you learn from your first set up?

 

[Punkur67]

I’d love to try the Zeus action! Love the quick barrel change option

I am very happy with how simple and effective it is. After load development on my 6cm I swapped barrels to my 6.5cm in a couple minutes. Zeroed that barrel that was very close to the same zero. Then I was was able to practice without putting extra wear on my 6cm.

 

[Punkur67]

What lessons did you learn from your first set up?

1) My first setup had a CF barrel. This made it difficult to balance the rifle properly. I bolted as much weight as possible out front but the rifle was still ass heavy and only weighed 18#s. The new rifle has a heavy barrel out front and now I have way more ability to balance the weight how I want
2) My chassis made it difficult to get the best eye relief with the scope all the way back. I tried to remove the folder hinge but that just put the bolt too close to the cheek peice. I learned to deal with it but I had to stretch sometimes to get a full FOV.
3) I had a hard time finding a good trigger hand position. I had to ride my hand up high to get a proper 90 trigger finger. I was able to figure out a reference point to index my thumb on the chasis with the help of @lowlight in his PR1 class. This worked but I found my hand just fell in to position with my MPA chassis.

 

[Punkur67]

I did some more load development. I added 10 more shots from 41.6- 42.2 grains to the original chart. The ambient temperature was 15-20 degrees hotter than the original 5 shots so I may have got some variations from temperatures.

Here is the 10 shots separated from the previous data so the conditions were the same across the chart for those 4 charge weights.

You may also notice that I added 10 more lines to the 65 guys spreadsheet so I can compare 15 shots instead of 5.

 

[Rob01]

I wouldn't push the 115s much over 3000fps as there is no need for a PRS rifle. You will just burn the barrel up faster. Look at all the guys running smaller calibers at 2850fps. On that note you better find a load soon or you will burn up that barrel finding a load. LOL

 

[Punkur67]

I wouldn't push the 115s much over 3000fps as there is no need for a PRS rifle. You will just burn the barrel up faster. Look at all the guys running smaller calibers at 2850fps. On that note you better find a load soon or you will burn up that barrel finding a load. LOL

I am going to run 42.2

 

[Baron23]

First round of load development went good. I am going to run another batch around 42.0-42.2 but i am happy with the velocities and SDs in this rangeView attachment 7650279View attachment 7650280

Nice...I have ChronoPlotter and it works well to plot data from LabRadar but may I ask what sftwr package you are using for the above?

And...very nice gun. Lovely.

 

[Punkur67]

Nice...I have ChronoPlotter and it works well to plot data from LabRadar but may I ask what sftwr package you are using for the above?

And...very nice gun. Lovely.

Its the 65 guys worksheet
http://www.65guys.com/wp-content/uploads/2018/06/Load-Analysis-Model-V2.xlsm

 

[Punkur67]

Very happy with the new rifle today. The zues is soo smooth and the rifle balances on baracades very well.

 

[S3th]

For what reasons did you pick the BA Comp over Matrix?

 

[Punkur67]

For what reasons did you pick the BA Comp over Matrix?

I already had a BA comp and really liked it so I went with what I knew

 

[Matt_3479]

Very happy with the new rifle today. The zues is soo smooth and the rifle balances on baracades very well.View attachment 7656562View attachment 7656563View attachment 7656564View attachment 7656565

Looks good. My Zeus is so far my favourite action. I had the same issue with the mdt. I just can’t get comfortable with the hand position. My shooting partner on the other hand loves it. My mpa and krg whiskey 3 just fit better. Want to try a matrix next to see

 

[Punkur67]

Looks good. My Zeus is so far my favourite action. I had the same issue with the mdt. I just can’t get comfortable with the hand position. My shooting partner on the other hand loves it. My mpa and krg whiskey 3 just fit better. Want to try a matrix next to see

I would like to try a krg myself

 

[Matt_3479]

I would like to try a krg myself

So far out of the 5 chassis I’ve spent a decent amount of time with and the 7 chassis I’ve shot with total the whiskey 3 is my favourite. I love the feel of the mpa but without an enhanced bag rider I just couldn’t make it work. Now with it it’s amazing too, but the whiskey 3 just falls into place, the hand position is about perfext (very nice on the mpa as well) the adjustablity of it is second to none with no slippages!! Very very pleased with it.

 

[Punkur67]

Had an article written about my new rifle and reloading gear at accurate shooter. Pretty flattered that they wrote about the new rig.

Sunday GunDay: 6mm CM and 6.5 CM Switch-Barrel PRS Rig « Daily Bulletin

Today we feature a modern switch-barrel PRS chassis rifle set up for quick changes between 6mm Creedmoor and 6.5 Creedmoor barrels. The owner, Forum member Jeff Cosgrove (aka Punkur67) uses the 6 CM barrel for competition, favoring the reduced recoil over its 6.5 mm big brother. He does use the 6.

bulletin.accurateshooter.com

 

[Punkur67]

Put a back up/ training rife together. I need to swap rings to my taller set.

-Zues terminus action with QC barrel setup
-6.5cm prefit Benchmark Heavy Palma barrel for training
- Triggertech diamond trigger
- MPA BA comp chassis with internal weight kit
-Vortex Razor gen 2 EBR-7c 4.5x27