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Reloading question

SteveM74
I am having to use BR-2 large rifle primers on my 22-250 reloads.

I have been putting 39.2 grains of H380 under a 53GR Barnes TSX FB.

The Barnes book says you can go over this charge a little because of the ring lands groves in the bullet.

My question is ,

Do you think I should back off a few tenths of a grain to offset the large rifle primer?
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Comments

9 comments

Date Votes
  • SteveM74
    Yesterday I was playing with my 257 Roberts that I've had some accuracy problems with. I loaded up 3 rounds using 35 grains of Varget and a 115 gr Nosler B.T. The OAL was 2.920". This group of 3 averaged about 7/8" at 100 yards. I loaded up 3 more with the same powder and charge, except this time I made the OAL 2.900 and the grouping opened up to about 6". My question is, can .020" make that big of a difference in accuracy? Next question is, how good of a bullet is the Nosler B.T. on deer? I heard it said once that they have too thin a jacket to get adequate penetration, and my final question is, on bullets with a cannelure, such as the Speer Grand Slam, is it necessary to seat the bullet so the cannelure is at the rim of the case?
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  • rufe-snow
    I don't know anything specific about the load your inquiring about. The ammo companies may not use commercially available reloading powders in their loads though. Best to get all the reloading information you can regarding 270 WSM. Have your friend start loading with with 90% of the maximum powder charges for starting loads. After firing check out accuracy and brass condition before either increasing or decreasing further loads.
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  • JustC
    ammunition factories use powders that are unavailable to the public. many times these are "married" powders, meaning several powders have been mixed in very specific proportions to acheive a pressure/velocity that was laid out by the tech guys.

    You can't beat H4831sc with a 130gr BT
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  • pip5255
    personally I believe not all guns are created equally and as such load my ammo for each gun to shoot at it's best, ruling out me.
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  • JimmyJack
    If you shoot a friends reloads it better be one that you trust your life with. I would never use a recipe that didnt come out of a handbook, and I wouldnt shoot anyone elses reloads.
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  • blackhawk45
    I'm a handloder ,and I agree 100% with JimmyJack .
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  • Mort4570
    I've been reading boards and books for many years,and factory info does not exist that I have seeen.
    Have your friend show you how to do it and YOU do the reloading.When YOU know the right amount of the correct powder is used,you're safe.
    Shooting someone elses reloads....maybe not so safe.
    I have a buddy who'se been doing it for years,his reloads suck...backwards primers,bulltets that creep under recoil,rounds with no powder,etc. Longevity does not equal expertise.
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  • SteveM74
    I appreciate the concern for my safety. The guy that will be relading the ammo sleeps with the Hornady handbook. He is a stickeler for detail and dosent go off the reservation with the homemade charges.
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  • nononsense
    SteveM74,

    You have to forgive us for being pedantic about reloading safety and reloading data. There are too many pitfalls that can catch us unaware unless we give lots of details and disclaimers. No one here wants to be responsible for an accident involving another member or information we have related to a question.

    It sounds like your friend will work out fine for your project.

    Three addendums (addenda for the sticklers...):

    - Hornady is actually printing ballistic information and powder selection on many of their factory loaded boxes of ammunition. I know this for a fact since I have a couple of cases sitting on my bench right this minute and I've discussed this with the Hornady technical staff.

    - The biggest switch in recent years is that the manufacturers of ammunition are making a huge investment in creating very accurate, right off the shelf ammunition for purchase by the general public. Some competition shooters are actually using factory ammunition in national level matches and winning.

    - It's been a known fact for many decades that the dedicated reloaders make ammunition which is more accurate than the factories were putting out. Now that is changing. Some folks will find that they do not have to invest in reloading gear simple because they can buy accurate ammunition.

    Good Luck with your project!

    Best.
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