Need Reloading Data for 7.5x55 swiss - Page 2

totaldla · August 5, 2014, 11:36 AM

Quote:

Originally Posted by lonniemike

totalda, The only difference from your post and mine is that you say absolutely do not interchange Hogdon and IMR 4895 data. And I still say they are very close and only matter at the extremes. So educate me more about how much different IMR and H 4895 are. I don't think there is usually more than a couple of grains difference with any load that I've ever seen listed. We are talking about experimenting from a lowpoint and working up safely for an accurate load, and not swapping max loads between say 46grains or more of 4895.Best

Now hear this: IMR4895 and H4895 are two completely different powders, made by two different companies, on two different continents.

If you want to discus them being "similar" then it should be like how Alliant's Power Pistol is similar to Hodgdon's HS6. Or Alliant's BullsEye is similar to Hodgdon's TiteGroup. Or Ramshot's Hunter is similar to Hodgdon's H4350. Etc., etc.,etc.

I spoke up because you were telling a noob that the powders are the same - which they are not. Confess and be healed my son.

lonniemike · August 5, 2014, 08:27 PM

totala, I guess you just can't read since I did state right off at the get go that No they are not the same powder and were made by different companies once. And I stand by my advise.

I must confess I never told a noob the powders are the same. Are you healed now? I know I feel very healed.
I wish your RealGuns data and you all the best.

Mike40-11 · August 10, 2014, 08:53 AM

My current Swiss load:

PRVI case
150 gr FMJ flat base bullet - PRVI, duplicate of the old 30-06 M2 Ball
43.0 gr IMR 4895
OAL 2.93

2650 fps, will hold the 10 ring if I can.

I've also loaded this with 42.5 gr. H4895. Didn't have a chrono at the time but function and accuracy was indistinguishable.

H and IMR 4895 ARE very similar. The H4895 was designed to duplicate IMR4895 afte Hodgon's stores of surplus WWII powder were exhausted. But now they are made by 2 entirely different companies. Close enough that if I have load date for one but not the other that I need, I drop 10% and work up.

Mike40-11 · August 10, 2014, 08:58 AM

Double post. Duh.

August 10, 2014, 08:53 AM	#28
Mike40-11 Senior Member Join Date: January 8, 2005 Location: Missouri Posts: 842	My current Swiss load: PRVI case 150 gr FMJ flat base bullet - PRVI, duplicate of the old 30-06 M2 Ball 43.0 gr IMR 4895 OAL 2.93 2650 fps, will hold the 10 ring if I can. I've also loaded this with 42.5 gr. H4895. Didn't have a chrono at the time but function and accuracy was indistinguishable. H and IMR 4895 ARE very similar. The H4895 was designed to duplicate IMR4895 afte Hodgon's stores of surplus WWII powder were exhausted. But now they are made by 2 entirely different companies. Close enough that if I have load date for one but not the other that I need, I drop 10% and work up. Last edited by Mike40-11; August 10, 2014 at 09:00 AM. Reason: typo

August 10, 2014, 08:58 AM	#29
Mike40-11 Senior Member Join Date: January 8, 2005 Location: Missouri Posts: 842	Double post. Duh. Last edited by Mike40-11; August 10, 2014 at 08:59 AM. Reason: double

August 5, 2014, 08:27 PM	#27
lonniemike Senior Member Join Date: March 16, 2005 Posts: 138	totala, I guess you just can't read since I did state right off at the get go that No they are not the same powder and were made by different companies once. And I stand by my advise. I must confess I never told a noob the powders are the same. Are you healed now? I know I feel very healed. I wish your RealGuns data and you all the best.