Prieto9000
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I'm getting 3200 fps with the hornady interbonds and h1000
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7PRC loads & velocities
- Thread starter KSB209
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Pengilly2
Member
Excellent cartridge...3100 out of a 26" proof carbon shooting 180s
I would really appreciate Load data, Pengilly
Thanks
Thanks
Buxndiverdux
Well-Known Member
I agree to a point... Except when it comes to cartridge design. The PRC lines have room for heavies in the magazine box and can be loaded for maximum performance without stuffing excessive amounts of bullet into the case. You won't accomplish that with a production 7Rem Mag.
I've spent extra money doing that to conventional chamberings to maximize performance. The PRC lines take advantage of this and it's available to the masses, with production rifles and with factory ammo.
There is still no replacement for powder capacity. If the 7mm Rem Mag was built with a throated chamber for heavies, a Wyatt's box, and a 7.5 twist barrel, it will smoke a 7PRC on powder capacity alone. Recoil will reflect that performance gain as well.
I agree. I like the 7.prc and as a parent case. Like the creed, the 7prc case can and will be used from 6.mm to 33.
And someone will do a 22 and a 37.
Hoping this info helps a few people.
Im shooting a Savage Ultralight Camo in 7prc with a 22" proof barrel. I have a Vortex PST 5x25 FFP for glass. Other than bedding the stock and lightening the trigger down to 2lbs the rifle is factory stock. This is intended to be my new elk rifle.
I started using Hornady brass and lost 3 pieces after two firings due to primer pockets stretching. Started shooting Peterson brass. After a couple firings the brass is still great as expected. (I use the ballistic tools swage gauges to find bad primer pockets). I didnt notice any other performance gains or losses using either the hornady or peterson brass. Hands down the Peterson is better quality but time will tell how long it lasts.
Ive tried a mix of H4831sc, RE22, H1000, and StaballHD. Different powder charges, seating depths, etc etc.. What I found for my rifle is the H4831sc and H1000 appeared to group the best. Ive only reloaded for the 175gr Hornady ELD-X, 175gr NosABLR, and 168gr NosABLR bullets.
**According to most resources all of my recipes are over charged. I loaded beyond these charge weights to find pressure in my rifle, best you do the same and work up from a much lower starting point.
175gr ELD-x, 66.6grs H4831sc, .060" jump, CCI250 LargeMag primers, 2940fps. This results in a100yd 1/4" - .3" group sizes.
175gr NosABLR, 68.5grs H1000, .050" jump, CCI250 LargeMag primers, 2850fps. Under 1/2" at 100yds
168gr NosABLR, 67gr H4831sc, .075" jump, CCI250 LargeMag primers, 2944fps. Under 1/2" at 100yds
Im shooting a Savage Ultralight Camo in 7prc with a 22" proof barrel. I have a Vortex PST 5x25 FFP for glass. Other than bedding the stock and lightening the trigger down to 2lbs the rifle is factory stock. This is intended to be my new elk rifle.
I started using Hornady brass and lost 3 pieces after two firings due to primer pockets stretching. Started shooting Peterson brass. After a couple firings the brass is still great as expected. (I use the ballistic tools swage gauges to find bad primer pockets). I didnt notice any other performance gains or losses using either the hornady or peterson brass. Hands down the Peterson is better quality but time will tell how long it lasts.
Ive tried a mix of H4831sc, RE22, H1000, and StaballHD. Different powder charges, seating depths, etc etc.. What I found for my rifle is the H4831sc and H1000 appeared to group the best. Ive only reloaded for the 175gr Hornady ELD-X, 175gr NosABLR, and 168gr NosABLR bullets.
**According to most resources all of my recipes are over charged. I loaded beyond these charge weights to find pressure in my rifle, best you do the same and work up from a much lower starting point.
175gr ELD-x, 66.6grs H4831sc, .060" jump, CCI250 LargeMag primers, 2940fps. This results in a100yd 1/4" - .3" group sizes.
175gr NosABLR, 68.5grs H1000, .050" jump, CCI250 LargeMag primers, 2850fps. Under 1/2" at 100yds
168gr NosABLR, 67gr H4831sc, .075" jump, CCI250 LargeMag primers, 2944fps. Under 1/2" at 100yds
Attachments
Thanks for the data. It is most helpful.
What is your round count on your barrel to get this information?
Im sitting right around 190 - 200 rounds down the tube right now. With the exception of shooting targets at stepped ranges out to 500yards I logged every shot over the chrony and for group sizes.
The 7mmPRC won't do anything phenomenal when you shoot bullets under 168gr or more of bullet weight. It's actually designed for bullets that weigh 175gr and above. The Nosler 175gr Accubond LR's are a good bullet to use as well as the Hornaday 180gr ELD-X for elk, moose, and mule deer as they are shot with exceptionally high terminal velocity which really packs a punch! The lower gr. bullet weight bullets work better with higher rate of twist barrelled guns like the 7mm Remington Magnum or the 28 Nosler which have twist rates in the 9-9.5 twists range. The 7mmPRC has an 8 twist, which is a lot faster rotation for stabilizing the longer, heavier bullets.
For those of you who have purchased loaded Hornaday 175gr bullets lately, you might be seeing a lot lower speeds than Hornaday published on their boxes. This is due to a shortage of the powder that they were using to develop the load they used loading the shells in the beginning. Apparently they haven't found another source of powder to use that will provide the same speed of their original ones. I think that they should have printed a sticker to place on the box so they didn't misinform the customer. Apparently they don't concur with me. The information that they are publishing shows around 200 fps faster than it is really going! That's a bunch of nonsense Hornaday, besides being false advertising. How are we supposed to trust you on any information you supply us with when we know you will lie to save money on some empty ammunition cartons! Sorry Hornaday, I won't be buying anything from you again!
Adding to this as it's one of the better load strands I've found.
As mentioned, the main benefit of the 7PRC is the ability to load heavier, longer 7mm class bullets. I went with the 180 Berger hybrid as it seems to be the sweet spot for this cartridge.
I worked with H1000 and N565, using both 215m and CCI 250 primers, and ADG brass. Short Action Customs built the rifle using a Defiance action and 24" proof cf barrel.
I hit higher speeds with both powders, but had the best accuracy and ES/SD's with N565 and CCI 250's. I think the 215m's might burn a bit hot for this cartridge.
"Final" load is 68 grains N565, .030 off lands, 2925 fps. I have 180 rounds down the barrel and just shot a 5-shot group at 420 yards to verify this load (it's been a few weeks since I'd developed it and I wanted to see how it went with the twice fired brass). Group measured 1 3/8" (.35 moa-ish). ES was 11.
Verification complete!
Will head out to the long range to verify out to 1200 yards hopefully soon!
As mentioned, the main benefit of the 7PRC is the ability to load heavier, longer 7mm class bullets. I went with the 180 Berger hybrid as it seems to be the sweet spot for this cartridge.
I worked with H1000 and N565, using both 215m and CCI 250 primers, and ADG brass. Short Action Customs built the rifle using a Defiance action and 24" proof cf barrel.
I hit higher speeds with both powders, but had the best accuracy and ES/SD's with N565 and CCI 250's. I think the 215m's might burn a bit hot for this cartridge.
"Final" load is 68 grains N565, .030 off lands, 2925 fps. I have 180 rounds down the barrel and just shot a 5-shot group at 420 yards to verify this load (it's been a few weeks since I'd developed it and I wanted to see how it went with the twice fired brass). Group measured 1 3/8" (.35 moa-ish). ES was 11.
Verification complete!
Will head out to the long range to verify out to 1200 yards hopefully soon!
I've found a good one with N568 and the 190LRH with Fed 215m.
2905ish with 2" avg groups at 500.
ES 15-20.
It's so nasty hot here I shot it over like 3 days and it held true. Now if the weather will ever break I'll go to 800 and beyond,
2905ish with 2" avg groups at 500.
ES 15-20.
It's so nasty hot here I shot it over like 3 days and it held true. Now if the weather will ever break I'll go to 800 and beyond,
deputyrpa
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- Oct 9, 2011
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I'm slipping sideways. I'm in all out boat upgrade/fishing mode while my tractor is down and being repaired. I only managed to get 20 acres of hay baled. I did hammer the fluke though.
I reamed the chamber and loaded some new Peterson brass with some N565 behind some 175gr ABLRs a couple months ago. And there she sits on the reloading bench. Holy cow time flies! I gotta shoot it soon, but I have to do 400 yards plus due to tall field grass obscuring my closer targets.
I reamed the chamber and loaded some new Peterson brass with some N565 behind some 175gr ABLRs a couple months ago. And there she sits on the reloading bench. Holy cow time flies! I gotta shoot it soon, but I have to do 400 yards plus due to tall field grass obscuring my closer targets.
deputyrpa
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- Oct 9, 2011
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- 176
And I didn't sight in my new Valdada G2 Mini scope after i removed it to use the AW reamer and install lower rings, so the 400 yard target may escape unscathed. I better go to my neighbor's and use his range.
