quote:

Originally posted by beretta96:
easy on the canadian jokes, don't group us all together, I'm canadian, he's from quebec. big difference!

Is quickload that accurate, could I be that much over max psi? Benchmark is only two powders slower and using virtually the same charge, could it make that much difference?

The data I'm using, although not book data, comes from a Charlie Sisk article I read. Could he be that far off as well?

I started off I believe at 41grs, and all was well and slowly loaded up to his max charge. All primer seating was excellent until I reached the 44grs. Accuracy was fine, velocity spread was fine as well.

I will try Benchmark but have to wait a couple of days until it comes in. I have 20 rounds loaded with 43.5grs, I guess I'm pulling bullets now.

thanks for the help,

I've never used Quickload, and have no way of measuring actual pressures, so I could not verify that 93K PSI figure anyway. But I would venture to bet that if you wee running over 93KPSI, you would not have "loose" primer pockets, you would have case heads fused to the bolt face, with primer pockets the size of a coke bottle cap in what was left of the case head! That's almost 20 KPSI OVER the proof loads that were used on the 1903 Springfields!

Tried Benchmark powder and accubonds again. I can't for the life of me get those accubonds to shoot any smaller group than 3"

Very annoying, they look so good though. Of course this rifle just loves the 185gr TSX bullets, will probably love the MRX's as well. Can't find anything more expensive yet. If I did it would love those too.

I realized after that this cartridge also seems to love a faster powder. I've tried just about all the recommended powders and all I seem to get is muzzle blast and piss poor groups.

I returned to RL7 this time going over my data I now realize I was a dumbass! For whatever reason I was loading up to 44grs of RL7. The max charge is suppose to be 42.9grs. This would now explain my swollen pockets!

I've settled on 42.7grs of RL7 and getting 2725fps with the 185gr TSX bullets and 5 shot groups are under an inch at 100 yards. No case extraction issues, primers seat very well and no need to trim cases until the 3rd reload so far. I think I'll stick with this load.

Thanks for all your help guys,

quote:

I returned to RL7 this time going over my data I now realize I was a dumbass! For whatever reason I was loading up to 44grs of RL7. The max charge is suppose to be 42.9grs.

Just curious as to your reference source.

I believe someone on this forum gave me the link to a Wayne Van Zwoll article where he bought a Charlie Sisk rifle and worked up a load about 7 years ago in the rifleshooter magazine. It was his load data I have been following.

I realize it's not proper powder according the the current powder/bullet manufacturers but accuracy is excellent, velocity is excellent and my cases are doing well so far. There are no signs of pressure at 42.7grs so I'm happy for now.

quote:

There are no signs of pressure at 42.7grs so I'm happy for now.

Hey if it works. Just wondered bacause that is several grains higher than any data I had. If the cases hold up to multiple firings then go for it.

Does anyone know of an aftermarket strain gauge that is somewhat affordable for reloaders?

I've never read of anyone using such an instrument which makes me think they're too expensive or not available.

This is what I had.
http://www.oehler-research.com/model43.html

Not cheap but a good product. Unless you are real heavy into wildcats and doing a lot of testing I doubt it would be worth the money. The guages are glued to the barrel over the chamber. You will damamge the blueing.

quote:

Originally posted by beretta96:
Does anyone know of an aftermarket strain gauge that is somewhat affordable for reloaders? ...

Unless you are setting up a Certified Ballistics Lab, the only thing the HSGSs accomplish are; 1. They stimulate the economy. 2. They provided non-calibrated, fudge-factored, totally guessed-at misleading garbage.

As a reference for that last sentence, check out the Questions and Answers given to and received from Dr. Oehler in that thread. A real "classic" HSGS thread.

Best of luck to you.

Trying to dissiefer the post in this thread and the actual question of loose primer pockets , the simple answer is:

you put to much powder in there!

quote:

Originally posted by beretta96:
Does anyone know of an aftermarket strain gauge that is somewhat affordable for reloaders?

I've never read of anyone using such an instrument which makes me think they're too expensive or not available.

Measuring pressure in a strong rifle becuase your primer pockets are loose is like measuring the length of your wieeener to see if your pants fit loose. It is the foreplay to mental masturbation. Do a search against "Denton", you'll find plenty of that kind of porno archived.