6mm cheat sheet info

[whatwind?]

i am just gathering info, please let me know what the correct numbers are, just gathering info for fun

		H2O	nk length	shlder ang
6x47 Rem		31.1	289	23
6x50 Mo Better		33.1	266	23
6x47		33
6PPC		33.74	280	30
6mm ARC		33.96	224	30
240 Tomahawk		36.2	170	40
6mm AR Turbo		37.45	185	40
6mm BR		39	320	30
6mm Grinch		39.05
6mm BRA (Lapua)		39.05	345	40
6 BRA (Alpha)		38.2	345	40
6mm BRG		39.35
6mm BRDX		39.5	283	40
6mm TAC		39.8	329	40	.462 shlder
6mm BRX		41	227	30
6mm Dasher		41.2	241	40
6GT (alpha)		43.3	299	35
6 GT (Horn)		44.9	299	35
6-250		44.5		26
6-250AI		50.1	265	40
6x47 Swiss Match		45.7	328	30
6x47L		47.75	310	30
6x47L AI		50		40
6xc		49.5	291	30
6creedmoor		51.1	281	30
Deep 6		51.2	351	26
243 wssm		53	278	37?
243 win		54	263	20
6 SLR		55	321	30
6 Comp Match		56	265	31
243 AI		57	267	40
244 Rem		57	376	26
6mm Rem AI		60.1	320	40
6-284		65	281	35
6saum		72	299	30

Base to shoulder;
6br. 1.071
6brdx 1.1647
6brx 1.171
6 dasher 1.1973

is very easy to get confused on the the specs for the 6 BR vs 6BRA. Simply put as I ascertain the reamer prints from JGS, the case wall on the 6 BR 30º is moved forward by .048 and the the neck shoulder junction is shortened by .004 and thus moving the shoulder angle back to 40º to form the 6 BRA 40º . The actual head space is .004shorter on the 6-BRA 40º than the 6-BR 30º.

all photos are off the internets, not mine

 

[Poor Shot 65]

Correct numbers depends on too many factors. You can’t just list them and assume that they aren’t dangerous or will work for your particular gun

 

[whatwind?]

just water then please, edited it

 

[CJ6]

Fired or sized ?

 

[whatwind?]

whatever you got i can add it all in there

 

[Plumsask]

i am just gathering info, please let me know what the correct numbers are

			H2O
	6mm BR		39
	6mm BRX		41
	6mm BRDX		42
	6mm Dasher		41.5
	6mm BRA		40
	6GT		43.3
	6x47		47
	6xc		49.5
	6creedmoor		50
	243 win		54
	243 AI		57
	6-284		65
	6saum		72

No 6mm rem or AI?

 

[whatwind?]

if you have the h2o capacity i can add it or anything else some one has

 

[Tokay444]

I would have thought BRDX had less capacity than Dasher.

 

[whatwind?]

I would have thought BRDX had less capacity than Dasher.

I am asking for help, this was guesstimates

 

[Racebannon3855]

Thank You for putting this together. This is my contribution.

6 mm Rem Imp 40 degree

WW case, CCI fired primer in case, unsized case.

I filed a slot at the bottom of the neck to make sure that the water was only to the bottom of the neck.

Empty Case = 176.5 grains, Water to bottom of neck = 233.0.

Capacity is 56.5 grains of water to the bottom of the neck.

If I fill a case to the top, I get 60.1 grains.

Not sure how the other cases were measured, that is how I measure mine.

.243 Winchester Brass Weight and Capacity Tested « Daily Bulletin

Forum member Andy (aka GreyMist) has completed an interesting test, with five (5) different types of .243 Winchester Brass. He collected Federal, Lapua, Remington, and two different lots of Winchester-brand brass. Then he selected ten (10) cases at random from each brand and measured their weights.

bulletin.accurateshooter.com

The above link is a nice analysis of weights and capacities of 243 Win Brass. I think he filled the cases to the top, not just to the bottom of the neck.


Stay Healthy!

 

[whatwind?]

thank you sir, i added it... anymore input is appreciated...

 

[457ciSBC]

If you want to add the 6x47 Swiss Match - 45.7

 

[jmcgowe]

I got 41.13 average on my Lapua hydro-formed, once fired 6mm Dasher cases.

John

 

[Dale264]

6x47 (not Lapua) 33
6-250 44.5
.243 WSSM 53.0

 

[whatwind?]

you mean 43 on the 6x47?

 

[Dale264]

you mean 43 on the 6x47?

The cartridges above should have an L behind them to indicate Lapua. The 6ARC has a capacity of 33.96gr H2O according to Gavin on Ultimate Reloader.

 

[whatwind?]

if you can fill me in on shoulder angle and neck length that would be good also

 

[Murray Brook]

Lapua resized brass in my 6 BR Norma has a capacity of 38.5 grs H2O. Same brass fired not resized is 38.6 grs H2O . Shoulder angle is 30 deg. Neck length is .331. Do you want some non 6mm cartridges or only 6mm.

 

[whatwind?]

Only 6

what is neck length and shlder angle?

 

[HPC]

Neck​					​	​	H2O​
Length​				Cartridge​	​	​	Weight​
0.3362​				6mm BR​	​	​	39.02​
0.3374​				6mm BR AI​	​	​	39.80​
0.2313​				6mm BRX​	​	​	41.00​
							​
0.2995​				6mm Dasher Norma​	​	​	41.18​
0.3764​				6mm International​
0.3720​				6mm HLS​	​	​	45.08​
0.3000​				6x47 Lapua​	​	​	47.88​
0.3032​				6 XC - Rem case​	​	​	49.64​
0.3001​				6 XC - Peterson case​	​	​	48.24​
0.2868​				6x47 Remington​	​	​	31.10​
0.2804​				6 PPC​	​	​	33.74​
0.1847​				6mm AR Turbo​	​	​	37.46​
0.2561​				243 Win​			55.58​
0.3755​				244 Rem​	​	​	57.02​

Sorry for the odd format, but this is off an Excel spreadsheet and I've removed unnecessary values.

The 6XC - Peterson case and the Dasher were unfired.