bigcountry

For those of you with 30-06 and 270Win Remington 7400's or variants, or even BAR's, I have found IMR4350 to cycle great in them. Reason I am writing this, is alot of tech support at Sierra and other manufactures, won't recommend that slow of a powder in Semi's. And insist that its bad for the gun. They usually recommend 4064 or varget. But I worked and worked with these two powders and couldn't get them to cycle correctly in my 270Win 7400. But I knew I could always get factory rounds to work great and the recoil was much harder. So I tried a slower powder and worked great with great accuracy also.

oldelkhunter

I'm starting to wonder about these so-called Experts myself... Middle of the road powders like 3031, H4350 or IMR4350,Rel19 should be fine in a rifle..Anything slower will not work correctly.

bigcountry

Here is the way I thought about it. Shooting factory loads in my 7400 worked great but accuracy was less than stagering. I shoot 2950fps with 130gr coreloks factory ammo. Then when I shoot H4064 or varget, my velocity dropped to 2800fps. So I am thinking why is shooting a slower powder so bad according to Sierra's people and Hodgdon's people. I appreciate there free advise but its like any advise.

oldelkhunter

I think they are afraid the bolt will get slammed back excessively if you use the really slow stuff. You would think with Varget that it wouldn't cycle correctly. I have been told by the Browning factory as well as Nosler to use the midrange powder. Just call Nosler on their 800 number and tell them the situation and I am betting they say to use a midrange powder.

eldeguello

<BLOCKQUOTE id=quote<font size=1 face='Verdana, Arial, Helvetica' id=quote>quote:<hr height=1 noshade id=quote>Middle of the road powders like 3031, H4350 or IMR4350,Rel19 should be fine in a rifle..Anything slower will not work correctly. <hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face='Verdana, Arial, Helvetica' size=2 id=quote> oldelkhunter, if 3031 is a middle of the road powder, then IMR4350, H4350, and RE 19 are NOT!! What the people are afraid of with a slow powder in a semi -auto is not slamming the bolt back too hard. What they are concerned about is having the bolt try to open before the pressures have fallen to a safe level. This could cause two possible efffects-one is dumping gas into the action; the other is tearing the head off of a case because it is still stuck to the chamber walls when the extractor tries to pull it out (except for the U.S. Rifle Cal. .30 M1, in which case you are going to bend the operating rod....

Keep yore powder dry!!

oldelkhunter

let me rephrase it Eldequello 3031 would be considered a middle of the road powder on a 06 but 4350,rel19 would be a middle of the road powder on a 7 mag.

eldeguello

Well, O.K. then!! You're right!!

Keep yore powder dry!!