7SS Build

[806 guns]

Im currently putting together a 7SS Build together.
Big Horn Origin 7 Sherman Short. 26" PROOF carbon Fiber Sendero 1:8.4 twist chambered and finished by Southern Precision Rifles (SPR - aka Bugholes). .110 throat, muzzle threads are 5/8x24.

I have some 30 degree shouldered brass to fireform.

Plan on using H4831SC with some 162gr eldm i have.
Stay tuned. I don't plan on hot rodding this one but just a moderate/accurate load.

 

[Phil Rizzo]

It shouldn't be difficult

 

[806 guns]

It shouldn't be difficult

Im tired of exhausting myself on cartridges. Always wanted a SS

 

[Phil Rizzo]

Mine prefers mag primers but it's about a 50-50 between mag and LR

 

[7mm man]

I use BR2s. I have a 26" and just ordered a 22". You will likely find it easy to work with. My 26" loves 172 Hammers.

 

[806 guns]

Thinking about getting some N565

 

[Phil Rizzo]

Mine loves 62.6 grs with a 160 BT/AB.
It's been stupid tight for 5-6yrs out to 500, as far as I'd likely shoot with those bullets. "Woods gun"

That's at least 1gr off max in mine, and I've get a verified tight bore.

 

[806 guns]

Simple build with a KRG Bravo.
I have a few scopes to choose from. Will get one mounted up this evening. Big shoutout to Zermatt. I ordered a mag bolt face and they didn't have it in stock. Sent a message asking about it and they had just received one. They next day aired me one at no extra charge. Really liking this Origin action

 

[Justice1327]

Mine loves 62.6 grs with a 160 BT/AB.
It's been stupid tight for 5-6yrs out to 500, as far as I'd likely shoot with those bullets. "Woods gun"

That's at least 1gr off max in mine, and I've get a verified tight bore.

I am going to try 565 in mine after I finish the RL26.
I wont expect the same velocity from my 18" barrel, but it should be a good powder.

 

[806 guns]

I have no rl26. But have H4831SC, H1000, retbumo and ramshot magnum.

I am going to try 565 in mine after I finish the RL26.
I wont expect the same velocity from my 18" barrel, but it should be a good powder.

 

[806 guns]

Proof sendero 1:8.4 twist
Tmb
Zermatt Origin action LH
Riton 3 primal 3-18x50 ffp
Krg Bravo
Mdt 3 round
Weighs 11lb 8 oz im young so weight doesn't bother me currently. Will mainly be a Aoudad/mule deer rifle for me.
Previous barrel owner was shooting 175/180gr RL26 3000fps

 

[lancetkenyon]

Original 7SS chamber? Or 7SS/B?
That 30° original brass is sized for the 7SS original chamber/reamer. The new brass is for the 7SS/B.

I love my 7SS. 24" 1:8.4" running 184 Hybs.

 

[806 guns]

Original chamber. I have fired brass and new A chamber brass, that i will need to fireform

 

[806 guns]

I would assume if I wanted more brass the new brass would still work?