Just bought one and I'm starting to look for loading data. The rifle won't be here for 2-3 weeks, but the dies and brass will be here by weeks end. I already have 535 and 590 gr BT bullets to start with from my other 50 cal and I want to have a few loaded up and ready...or at least something I can fondle and look at.

Does anyone know what the pressure/proof limits are for this rifle?

I know it's a strong action, some say as strong as any of the falling block receivers, and found numbers running from 28 KPSI up.

I'm not looking to push any envelope, I've been at this game well over 50 years, I just want to know what is and isn't safe.

Thanks

Ask the importer.

Contact Us | Chiappa Firearms

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H&R Centerfire Rifle Forum

Thanks for the link...I did ask Cimmaron but only got boilerplate and lawyer talk...no numbers...Petersoli was the same but admitted to 29KCUP/PSI .

I was hoping for actual load data from someone who has and shoots a ArmiSport rifle with both smokeless and BP. So far everyone who I've contacted is reluctant to give any statements...understandable in todays situation.

Not a lot of data for the 50-90,100,110 or 140 other than BP...and the BP forums are just as contentious as all the other forums especially when you mention smokeless. There needs to be a smiley for extreme disgust I think.

Thanks again for the link.

Luck

I read the owner's manual for the rifle, BP or subs only for their cartridge rifles.


http://chiappafirearms.com/sites/def...Sharps_ENG.pdf

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H&R Centerfire Rifle Forum

Dial up speed has been horrendous today...almost 10 minutes to get a reply to post. I tried to download that manual and couldn't get past the second page. Gotta go to town in the next couple days and I will WI-FI it at the library.

The proof numbers will be somewhere on the rifle when it gets here.

With that curved steel buttplate, recoil will stop the messin' before the pressures will.

Thanks again.

GOT IT...came in yesterday, I finished my busy-mess early and I got to the shop just before it closed.

I'm going to be very happy with this toy. Couldn't find but one tiny hiccup that will become "character" over time.

Can't see why the hoohaw over the fit and finish...absolutely nothing wrong that I could find even in the machine checkering...nice sharp diamonds, no overruns on either the stock or forend...and I looked with a 5x magnifying glass.

Any comparison to a Sharps Rifle Co rifle is ludicrous...at 4 times the cost I paid...like comparing a Turnbull restoration to an off the shelf levergun...they are not even in the same state comparatively speaking.
As far as I can tell, I would classify this rifle as "excellent" as compared to any other "production" rifle I've looked at...CZ, Rem, Win, Savage, etc...as far as fit/finish/wood/bluing/machining and so forth.

The wood is OK, not a lot of figure as I expected, this being a production rifle.

The action worked smooth, no slop where it shouldn't be...firing pin DOESN'T need to be bushed and has a return spring so it doesn't stick out after firing...but it would still be safer to half cock it before opening the action, just in case the spring does break or brass/junk happens to get in around the pin and hole.

I fired 3 rounds, AA4350/475gr BT, ~16KPSI/1800fs, just to see where the sights were situated...all shots hit just ~12" low at ~100yds but the windage was correct...probably would have been right on at 50 yds...good enough to start chrono work.

Gun weighs 10-11 lbs...plenty good, but even at this low a velo it will get your attention if you don't get a tight hold.

I definitely needs some king of cheek "softener" for my cheek configuration...I did get 3 good thumps. It also needs a good lace/slipon recoil pad to help with that mean steel butt plate. Already on my order list along with more boolits and powder.

AA4350 is a bit "dirty" with the residue, but it is soft and comes out quick...AA4350 and AA2495 both end up as the "goto" powders, giving the highest velos.

This is a stong action...lots of meat on the barrel and "receiver ring"...the only possible weak place is the "firing pin pusher"(Armisport nomenclature) transfer bar, firing pin hole...gas from a blow primer could blow that part out and upwards, possibly into the face of the shooter.

This cartridge, as is, keeping within the proof pressure limit of 29KPSI and 475-650 gr bullets will provide enough whack to take out a T-Rex anytime day or night. AA2495 will get you ~2250fs with a 475 gr bullet at just below 29KPSI...according to QL...your/my results may vary.

I LIKE IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Luck