7mm PRC?

[Buzzsaw]

Recoil quite nice?

 

[searcher]

Pretty simple to call JGS and give the neck specs for the 300PRC case. Recently found a .25/300 PRC reamer for sale. Considered it as well but realized I didn't need more horse power than I already have in that caliber. Seems about equal to the 7mm mag performance minus the belted cartridge. I can see where getting away from that would be an advantage also the longer neck for using the 195s and allowing more case capacity.

Yeah - if I were wanting a 7mm Mag-style rifle - that PRC would be of great interest to me. My current 7 MM Rem. Mags will probably keep me till I croak.

 

[Alex Wheeler]

 

[NLS7162]

What is everyone getting for an outside neck measurement for a loaded round in ADG brass?

 

[rhovee]

.313

 

[NLS7162]

rhovee, thanks for the response

 

[Kracken McGraw]

.313

Kinda peeking from a good distance because I don’t(shouldn’t) need a new rifle. What is going to be the best neck chamber measurement for the 7PRC with that .313 loaded neck?

 

[rhovee]

SAAMI is .318 so should be fine.

 

[Kracken McGraw]

SAAMI is .318 so should be fine.

I hate to ask bothering questions, but does the 7PRC require large Magnum primers?

 

[carpooler]

Both the 6.5 Rem Mag, and the 284 Win. are 55 mm Va long. The 300 RCM is 53 mm long and the newbie 7mm PRC is a nominal 58 mm in length. Yet boat tailed bullets must go back into the 7 mm PRC’s powder chamber??

 

[carpooler]

Gotcha. You wouldn't expect that looking at them. The .500 vs .532 base makes a big difference.

Brass mills put extra metal in rebated case heads! Thi gives more of an edge to the Ruger cases based off their 375 Ruger.

 

[carpooler]

Or, you could just build a straight 284 which is equal to the necked up 6.5 PRC case. Lapua 284 brass would sure make life easier for you and probably lots of reamers already available. Just a thought.

I feel Hornady missed the mark here. The 7mm PRC’s short neck belies boat tailed bullets. I am going to squeeze a longer neck out of my 300RCM wildcats with these 7mm PRC cases. Boat tails need to stay inside the necks. Just my two cents!

 

[Kracken McGraw]

Boat tails need to stay inside the necks. Just my two cents!

Serious question, why would it matter if the boatail portion has no bearing surface?

 

[carpooler]

Bill Steigers told me he found the atmosphere melted lead cores which leaked from skives on spitzer noses by 500 yds. Putting these bullets on a hot plate caused ribbons of lead to leak out too. These short fat cases are efficient, and that helps cook boat tailed bullets. Just my two cents!