7mm PRC short barrel?

[gtriple]

Is Unknown planning on loading for the 7PRC? I have them building me a 20 inch 7PRC in a Rokstok. Just waiting on the stock at this point. I was planning to do my own loading, but haven’t totally decided yet.

Yes, they have already loaded mine.

 

[Gadjet]

Yes, they have already loaded mine.

Nice! Did you have them do a load work up?

 

[gtriple]

Nice! Did you have them do a load work up?

Nah, I just told them to use whatever their best "factory" load is using the 175gr ELD-X. I do the same thing with the 6.5CM and 6.5PRC. Both are plenty accurate that I've never felt the need for a custom loading.

 

[Gadjet]

Nah, I just told them to use whatever their best "factory" load is using the 175gr ELD-X. I do the same thing with the 6.5CM and 6.5PRC. Both are plenty accurate that I've never felt the need for a custom loading.

Good to know. Thanks

 

[prcwv]

This was all the more spice my gun likes with Peterson Brass. Not even max according to Hodgdon but.....pretty good for 18 inch barrel. Got a few other loadings to try today. This stuff is super fine like the StaBall powders. So maybe a few kernels difference made the numbers vary.

 

[Fever Buck]

This was all the more spice my gun likes with Peterson Brass. Not even max according to Hodgdon but.....pretty good for 18 inch barrel. Got a few other loadings to try today. This stuff is super fine like the StaBall powders. So maybe a few kernels difference made the numbers vary.
View attachment 729191

2900 out of an 18” is nuts

 

[Randonee]

Another data point. I have a 7 PRC built by Unknown Munitions, Bat Vesper medium action, Rokstok, Ace #2 barrel at 19”, TB ultra 7. I’m shooting Hornady factory 180 eldm lot# 3233832 at 2710 fps. I have about 200 rounds through it and the barrel hasn’t really sped up (maybe 5-10 fps, and I’ve been chono’ing most of my shots).

 

[prcwv]

2900 out of an 18” is nuts

It's pretty easy with N560 too but it's hard to find an right now the Grand is new an cheap so long as I get 2800 or so I'm happy

 

[BossGobbler2024]

Bumping this thread. Trying to decide between an 18" and a 20" barrel for a 7prc Tikka. I'll be running an Ultra 7 Gen 2 can on it. Anybody have velocity data for factory Hornady Precision Hunter or hand-loaded Barnes LRX loads?

I know this post is older but I will going to the range this weekend with my 18 inch 7mmPRC with 168 TTSX and VV570 so will report back for those interested.

 

[Fever Buck]

I know this post is older but I will going to the range this weekend with my 18 inch 7mmPRC with 168 TTSX and VV570 so will report back for those interested.

I have a 22” barrel right now and interested in going to an 18 or 20”. Let us know what you shoot.

 

[Oregonhuntrboi]

Seekins element with barrel cut to 18 inches by unknown munitions. Also got a load development pack for 180 gr eldm. Hopefully can chrono and get some #s back soon.

 

[BossGobbler2024]

I have a 22” barrel right now and interested in going to an 18 or 20”. Let us know what you shoot.

I have shot a 3 shot ladder with my gunwerks 18 inch 7 PRC with Elite iron suppressor using N570 this weekend. Results are fair nothing outstanding yet. I shot from 66.4 gr to 70.1 (book max showing 68.7gr). I have not seen any signs of pressure. I shot 27 rounds on Friday up to 69.0 gr and ran out of range time as it closed. I had a decent group at 68.4 (2743 FPS) so I loaded 10 rounds with this charge weight at BTO 2.620 (0.050 jump and 2.590 (0.080 jump) and shot those today with the remaining loads I had upto 70.1 grns. I decided to clean the barrel since its still new. I shot 3 rounds of Factory outfitter 160gr CX to start today and foul the barrel. This ammo doesn't shoot well in this rifle so its good for something. I will attach the targets but nothing is extra special velocity is very near 2800FPS with 70.1grns N570. I will say as noted previously this powder is definitely large log sized kernals and I tapped them down so as not to crunch em. This will definitely be more an issue as charge weight goes higher. I will load a few more with more higher charges to see where pressure signs occur but I think I will load some more rounds at 70.1and 69.09 with same seating depth and try to seat deeper if I can to increase the jump to try and tighten the groups. The stats sure seem to be more favorable at the higher chargers. These are shown on the targets. NOTE: these are all 168 gr LRx bullets. I had put TTSx down in error. The squares are 1 inch on the targets.

 

[North River]

Just under 100 rounds down a 20” proof SS barrel. Factory Hornady 175 ELD-X are 2743. 180 ELDMs over 65gr H1000 2650fps, 66gr 2715, 67gr 2765.