Competition Build Complete

[kenzup]

Just got my build complete for this years PRS series.

6mm Creedmoor
Deviant Tactical Action Nitrided
Bartlein Barrel: 28" Heavy Palma 1:7 twist with Surefire suppressor adapter
MPA BA Competition Chassis in Vortex Bronze and enhanced bag rider
Tiggertech Diamond Trigger
MPA Scope Base
Vortex Razor Gen II 4.5x27 EBR C 2
Harris HBRMS with MPA RAT adapter
Gunsmithing done by Charlie Robertson at Score High here in ABQ

Going to fire form brass tomorrow, ladder test Friday, Zero and dope Saturday and local match Sunday. We will see how she goes.

 

[ShtrRdy]

Very cool! Best of luck to you.

 

[kenzup]

Very cool! Best of luck to you.

Appreciate it.

 

[stevieb92]

Very sweet rifle! Interested to see your range results and load development. Who did the vortex bronze on your MPA? Direct through MPA or custom? Is the color a stock color or custom mix?

 

[Narsus]

You are giving me the urge to go spend lots of money, I've been thinking of something very similar.

Looks awesome! Minus scope and rings what did it run you roughly?

 

[kenzup]

Very sweet rifle! Interested to see your range results and load development. Who did the vortex bronze on your MPA? Direct through MPA or custom? Is the color a stock color or custom mix?

I ordered in that color through MPA. It was considered a custom color through them.

I will update on range results. I will be fire forming today on the indoor range. Just because I am time limited to get it ready for the match on Sunday.

 

[kenzup]

You are giving me the urge to go spend lots of money, I've been thinking of something very similar.

Looks awesome! Minus scope and rings what did it run you roughly?

Action $1450
Barrel $350
Chassis $1300
Trigger $260
Brake $150
Gunsmith $500
Total $4010

 

[kenzup]

Alright. I had to have a buddy do my ladder test for me due to a work deal. Here are the results:
Lapua Brass
Sierra 110 Match Kings 80 thou jump
H4350

39.4 gr 3025 fps
39.6 gr 3037 fps
39.8 gr 3052 fps
40.0 gr 3057 fps
40.2 gr 3072 fps
40.4 gr 3089 fps
40.6 gr 3102 fps
40.8 gr 3115 fps
41.0 gr 3107 fps
41.2 gr 3142 fps

This was interesting because Of my 40.0 load. with a drop. I loaded up for the match with 39.9 gr and did 10 rounds at 40.7 gr just to chrono/group. The morning of the match was like 25 degrees about 20 degrees colder then the ladder test. 39.9 chrono'd at 3043 fps with 4.0 SD and 40.7 at 3084 fps with 8.7 SD. Based on PRS blog and what Hogdon advertises the temp dev made sense for the 39.9 gr but as a bit of a jump for the 40.7 gr.
Now, the groupings where not at all what I thought they would be. The 39.9 was an inch and that was being generous and the 40.7 was a half to three quarters.

I shot the match with no dope besides the calculator (Applied Ballistics) and it seem right now. This was the first I was shooting this rifle myself outside. I had some issues getting stable on some stages but didn't come in last. Just below middle of the pack of 30+ shooters.

After I had 15 extra rounds and wanted to check the groupings. Again this is with the 39.9 gr load and now again about 45 degrees.. I shot a shot group and 3 where on top of each other and so flyers. My friend shot a 5 shot group and was an inch to an inch and half. I shot the third group with 3 touching and two flyers. It just seemed weird to me.

I am not satisfied with this with what I have put into the rifle. I am going to do a modified OCW tomorrow with 39.9 to 40.9 and just shoot 5 round groups. Then chrono, zero Sunday and next Saturday verify some dope for the match next Sunday. If I can't get a group that I like I think I am going to go back to the 39.9 gr load due to the standard dev and work my seating depth to try to tighten it up.

I have used the ladder test system in the past and have had great results. I did it with my 6.5 creed and shooting .29 moa groups. I worked in a buddies .308 with nothing done to it besides crowning and bedding. He is shooting .35 to .40 moa groups. I don't know why I am having an issue with this rifle.

I will post my groupings from tomorrow and keep everyone updated.

 

[M338]

The 110’s have a reputation for being a little picky.

 

[kenzup]

Alright, I did my modified OCW. Top left to right is 39.9 gr, 40.1 gr, 40.3 gr and 40.5 gr. The bottom row left to right is 40.7 gr, 40.9 gr and 41.1 gr. The far bottom right is another rifle. I think by load is going to be 40.9 gr. The ladder test had a drop in velocity there. I should be in a node as well. I am going to do one more test for load development tomorrow. I have been jumping 80 thou based on everything I have been reading on these 100 SMKs. I am going to load 40.9 at 80, 60, 40 and 20 thou for 5 shot groups and see if I can tighten up the group. I will load up 5 extra at 80 thou to run through the chrono and as foulers for the test.

Above is the left group below is the right group for each target

 

[kenzup]

I have finished load development. I went and did a seating depth test and it was such a windy day that I was getting blown on the bench. This caused me to not get the best results. I lucked out and went with what I though was the best. I ended up only working a three shot group for the picture but it is holding this grouping with 5 shot groups as well. I went with 60 thou off the lands then chrono'd and zeroed. 40.9 gr of 4350 3.3 SD at 3121 FPS.

 

[IndianaRem5r]

I think you need to dump the Sierra Match Kings in favor of Berger VLD's or DTAC's and reduce your jump considerably.

 

[Kadams1563]

I thought the only bullet people shot in 6creed WAS the DTACS.

 

[acudaowner]

Looks like a very nice build .