Your 6.5 CM Data

[Justin Crossley]

Bullet, barrel length, powder charge, and velocity?

I'm putting together a rifle with a 24" barrel and thinking of shooting the 140 RDF for competitions.

 

[woods89]

All out of a 22" Hawk Hill. This is one of those barrels that spoils you.

156 Berger
Lapua SRP
41.3 RL 16
CCI 450
COAL 2.880ish
2650 fps

140 Elite Hunter and 140 Hornady BTHP
Lapua SRP
41.8 H4350
CCI BR-4
COAL- 140 BTHP 2.800
140 Elite Hunter 2.820
2730 fps

130 TMK
Lapua SRP
39.2 Varget
CCI BR-4
COAL 2.800ish
2830 fps

Work up on your own! 156 load is just a bit spicy.
I intend to do some work with 130 TMK and H4350 this summer. The 130 TMK is probably my solution going forward.

 

[Lawnboi]

Lapua brass, 41.5 of h4350, about any 140. This has worked for a lot of barrels. Going around 2750 in a 26”.

I’m personally a fan of 140 and 144 hybrids.

Can be pushed faster, but I’m not a fan of being on the ragged edge of pressure, especially on a match rifle.

Planning on this for NRL? Iv been thinking of getting a 24” creedmoor in a light contour, or a proof prefit for nrl next time around. Thinking I can take my current prs rifle with a lighter barrel and no weights, and make it work for open heavy. That and I’m thinking of cutting most prs style matches out and trying to shoot more nrl hunter.

 

[Firestone]

Tikka ctr 24"
cci Br2, 42g H4350, 140eldm 2783fps

Lilja 26"
Cci450, 41.8g H4350, 140eldm 2796fps

 

[Brownrice]

Lapua brass
cci SR
41.5 H4350
140 eldm
T3x barrel
2768fps

 

[Justin Crossley]

Planning on this for NRL? Iv been thinking of getting a 24” creedmoor in a light contour, or a proof prefit for nrl next time around. Thinking I can take my current prs rifle with a lighter barrel and no weights, and make it work for open heavy. That and I’m thinking of cutting most prs style matches out and trying to shoot more nrl hunter.

Yes, I'm building a rifle for the Open Light division.

 

[Firestone]

Yes, I'm building a rifle for the Open Light division.

I am pulling the barrel off the ctr and doing the same thing. I have a feeling a lot of guys are following suit haha

 

[LongWayAround]

Anyone have a muzzle velocity for Hornady factory ammo (140,143, or 147 ELD) and a 22" Bergara (B-14) barrel?

 

[Justin Crossley]

I am pulling the barrel off the ctr and doing the same thing. I have a feeling a lot of guys are following suit haha

I'm not sure if a lot of people are doing it but my heavy barrel on my 6.5 Cheater Mag should be toast by then and I want to go lighter to match my hunting rifles closer.

 

[TX_Diver]

Starline brass - 19.25" T3x lite barrel. 143 ELD-x and 140 elite hunters

 

[TX_Diver]

Data from before that finding pressure w/ various bullets. Same 19.25" barrel.

T3x Lite w/ original barrel cut to 19.25". New starline brass 1x resized w/ CCI primers & H4350. Measured w/ a magnetospeed sporter attached to a suppressor w/ sensitivity on Hi 2.

Went through a ladder with some 140s and 143s today just to get an idea of what velocity I'm getting. 32 degrees out. 70 in the house and I brought rounds out 3 at a time and shot them in different orders each time. Just trying to see if I get pressure signs anywhere. Loaded as long as they'd fit in my CTR magazine. I have all the measurements written down and how far off the lands they are in a different book. I loaded these a year ago and never got around to shooting them. Will post headstamp pics later and see if anyone has an opinion on pressure signs. Maybe a minor swipe at 43+ but I get that fairly often from this gun so hard to say.

One thing that's interesting is that the 143s are slightly faster than the 140s. Guessing that has to do w/ bullet shape and bearing surface? 147s are also faster but it was 15 degrees warmer when I shot those.

140 Hybrid Target

H4350	6.5 CM	Charge	36	37	38	39	40	40.5	41	41.5	42	42.5	43	43.5
	140 Hybrid	Book Velocity	2378 @36.5						2634
Berger	34-40.3	Chrono Velocity			2298	2354	2435	2450	2509	2529	2556	2605	2634	2657

140 Elite Hunter

H4350	6.5 CM	Charge			38	39	40	40.5	41	41.5	42	42.5	43	43.5
	140 Elite Hunter	Book Velocity			2471							2731
Berger	38 to 42.3	Chrono Velocity			2290	2344	2408	2460	2479	2512	2570	2598	2633	2649

143 ELD-X

H4350	6.5 CM	Charge	36	37	38	39	40	40.5	41	41.5	42	42.5	43	43.5
	143 ELD-X	Book Velocity	2400		2500		2600	2650		2700
Hornady		Chrono Velocity			2344	2405	2444	2511	2503	2557	2563	2629	2651	2662

Older data for reference
156 EOL shot at 42 degrees

H4350	6.5 CM	Charge		37	38	39	40	40.5	41	41.5	42	42.5
	156 EOL	Book Velocity	2405 @36.5					2627 @ 40.3
Berger	34-40.3	Chrono Velocity		2265	2282	2354	2449	2447	2473	2500	2536	2576

147 ELD-M w/ CCI Primers at 47 degrees

H4350	6.5 CM	Charge	36	37	38	39	40	40.5	41	41.5	42	42.5	43
CCI	147 ELD-M	Book Velocity	2400		2500	2550		2600
Hornady	34-40.3	Chrono Velocity	2252	2291	2321	2455	2495	2491	2548	2553	2583	2616	2629

147 ELD-M w/ WIN Primers at 47 degrees

H4350	6.5 CM	Charge	36	37	38	39	40	40.5	41	41.5	42	42.5	43
WIN	147 ELD-M	Book Velocity	2400		2500	2550		2600
Hornady	34-40.3	Chrono Velocity	2254	2323	2370	2430	2510	2534	2558	2590	2621	2658	2637

 

[TX_Diver]

Possibly some duplicates but back when I was thinking of sticking with 147 ELD-M (and then went down the rabbit hole...)

42gr H4350

 

[PineBrook413]

24" Bergara Premier, Hornday cases, fed GM210 primer, RL16 41.6grains, 147 eld-m, 2761 fps

Avg 5 shot group is sub 3/4 moa

 

[LongWayAround]

A friend loaded these for me awhile back.

I did notice he has a "typo" on the card. It should read IMR 4350, not 4053.

Edit: He believes 41.8 was the final charge weight.

 

[sndmn11]

Staball 6.5 (cheap, temp insensitive, meters easy)

140 vld hunt
Hornady brass 45.2gr = ~2860fps
Alpha brass 44.5gr = ~2828fps

2.815 overall length
2.173 to ogive

24" vanguard with factory brake

20" vanguard with brake and Hornady brass 45.2gr was 2830fps

 

[Justin Crossley]

It will be a while for my barrel but I have the brass ready thanks to @Unknown Munitions. 500 pieces of Peterson brass should last a while.

 

[XLR]

I have ran the same loads in a few different rifles.

All of them were Lapua SRP Brass, CCI 450, H4350 and 147 ELDM.

41 Grains
28" Preferred barrel - 2803 fps
26" Bergara MG Lite - 2760 fps

40 Grains
28" Preferred barrel - 2698 fps
26" Bergara MG Lite - 2673 fps

 

[Rieckman]

18" barrel
H4350 - 42.2 Grains
JP Match Brass
Federal LRP Match
143 Eld-x
2620

 

[JGRaider]

Can't believe more people aren't shooting the 139 Scenar. At 2775fps, it's just stupid accurate, and a very reliable killer of deer sized game and hogs. Doesn't get any better for the 6.5CM IMO.

 

[ATL]

24” Bartlein 5R, Starline brass, CCI 200, 147 ELDM, 41.9 gr. RL16, 2.915 OAL, 2750 fps.