jhei88
Member
TODAY i started to reload 270, i was just wondering if somebody could check my work? im using hornady 130 grains sst, Imr 4350, cci large rifle primers. My oal is 3.180, with 50 grs of powder.
Thanks
Thanks
opinions on 270 win reloads
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soloban
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The IMR/Hogdon Data Center shows the following data:
130 GR. HDY SP IMR IMR 4350 .277" 3.180" 50.2 2806 43,700 CUP 55.0 3028 49,900 CUP
Looking like your load is pretty close and probably a good starting point.
130 GR. HDY SP IMR IMR 4350 .277" 3.180" 50.2 2806 43,700 CUP 55.0 3028 49,900 CUP
Looking like your load is pretty close and probably a good starting point.
jhei88
Member
Ok, so i can use the sp data then? Is there anything i should look for tomorrow when i shoot them? Do you think those will be good loads for deer or do i need to work it up?
41 Mag
Member
While every rifle is different, you should be good to go using that load to start out with. If they group well they should do the trick on most any deer within 250yds. This said you may find your groups get better as you work up slowly to just past the mid range of the data for this powder, granted your not presented with any pressure issues in your rifle.
I have used that bullet for a number of years now, and have found it to be very reliable. There are a couple of caveat's though. If you have access to a chronograph, borrowed or otherwise, try and keep you velocity in the 2800 - 2900fps range. While this doesn't sound exciting, it will go a long way in reducing the amount of damage those and the Nosler Ballistic Tip bullets impart on deer and such.
The Hornady, I have found to be a tad more forgiving, but those plastic tips still very much so promote expansion. I shoot them right at 3000fps from mine, but I generally use that particular rifle when sitting out on an open pasture where shots are going to start in the 150 - 200yd range. I am loading with Ramshot Hunter, and Win-WLR primers in Winchester case. I have found that at 200yds this combination easily out performs the other loads I have tried, and the combination also matches up with the drop chart supplied for the Burris Mil dot scope within an inch out to 400yds.
The other thing is that with the olgive of the SST allows you to seat them out further than with some other brands. While this might help you, it also might hamper your quickly chambering a second round from a magazine in some rifles. With my Remington, I know that if I seat them out to the max of my magazine, a second round quickly chambered will hang just about every time, right at the lip of the mag well and under the chamber. It is the very tip of the bullet which fits perfectly in the gap which does it as it rises up. Seated another .010" deeper they feed like silk. I found this out while hog hunting and it was a REAL bummer at he time. Just something you may or may not have an issue with, but well worth finding out about on the range verses in the field.
Good luck with your loads, I hope they work out well for you. The combination is a great place to start and has been a consistent performer for years in many guns. If the groups don't seem to fall in line with where you feel they could, drop your load back down and try working back up with another brand of primer. I have had great results with the CCI-BR2 over the standard, and the Win-WLR being the best overall with my loads.
I have used that bullet for a number of years now, and have found it to be very reliable. There are a couple of caveat's though. If you have access to a chronograph, borrowed or otherwise, try and keep you velocity in the 2800 - 2900fps range. While this doesn't sound exciting, it will go a long way in reducing the amount of damage those and the Nosler Ballistic Tip bullets impart on deer and such.
The Hornady, I have found to be a tad more forgiving, but those plastic tips still very much so promote expansion. I shoot them right at 3000fps from mine, but I generally use that particular rifle when sitting out on an open pasture where shots are going to start in the 150 - 200yd range. I am loading with Ramshot Hunter, and Win-WLR primers in Winchester case. I have found that at 200yds this combination easily out performs the other loads I have tried, and the combination also matches up with the drop chart supplied for the Burris Mil dot scope within an inch out to 400yds.
The other thing is that with the olgive of the SST allows you to seat them out further than with some other brands. While this might help you, it also might hamper your quickly chambering a second round from a magazine in some rifles. With my Remington, I know that if I seat them out to the max of my magazine, a second round quickly chambered will hang just about every time, right at the lip of the mag well and under the chamber. It is the very tip of the bullet which fits perfectly in the gap which does it as it rises up. Seated another .010" deeper they feed like silk. I found this out while hog hunting and it was a REAL bummer at he time. Just something you may or may not have an issue with, but well worth finding out about on the range verses in the field.
Good luck with your loads, I hope they work out well for you. The combination is a great place to start and has been a consistent performer for years in many guns. If the groups don't seem to fall in line with where you feel they could, drop your load back down and try working back up with another brand of primer. I have had great results with the CCI-BR2 over the standard, and the Win-WLR being the best overall with my loads.
GooseGestapo
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I've loaded for many different .270's with 130gr bullets and IMR4350. Two weeks ago I picked up my "latest", a circa late '60's or early 1970's Interarms MkX Mauser w/24"bbl.
It shot the first 3 Hornady 130gr "Interloks" over 54.0gr into .75" with 2-touching......
No tuning, nothing but a detail cleaning and adjusting trigger to a "not scary" condition.... (gun was "dumped" at a pawn-shop because it wouldn't hold the firing pin due to lack of sear-engagement. I'm the benificiary of someones gunsmithing "incompetence".... again....)
Many years ago, Jack O'Connor (my adolecence hero....!, That and Bill Jordan who I met and shook his hand and had "no second place winner autographed...) used the now over max load of 56.0gr of IMR4350 and a 130gr bullet as the definitive .270 load.
I suggest as most manuals that 55.0gr is a "better max" load. My gun shot a .089" 100yd 5-shot group with the 130gr Nosler B.T. at 3,080fps at a seated depth of 3.330" from Winchester OFB brass..... Winchester LR primer.... Not bad for a $200.00 rifle with a $30.00 Simmons "Blazer" scope........
Like someone else on this forum once stated, If a .270 won't shoot with either 54.0gr of IMR4350 or 58.0-60.0gr of H4831 and a "good" 130gr bullet (Nosler, Sierra, Speer), It's got a bent barrel .........!!!
It shot the first 3 Hornady 130gr "Interloks" over 54.0gr into .75" with 2-touching......
No tuning, nothing but a detail cleaning and adjusting trigger to a "not scary" condition.... (gun was "dumped" at a pawn-shop because it wouldn't hold the firing pin due to lack of sear-engagement. I'm the benificiary of someones gunsmithing "incompetence".... again....)
Many years ago, Jack O'Connor (my adolecence hero....!, That and Bill Jordan who I met and shook his hand and had "no second place winner autographed...) used the now over max load of 56.0gr of IMR4350 and a 130gr bullet as the definitive .270 load.
I suggest as most manuals that 55.0gr is a "better max" load. My gun shot a .089" 100yd 5-shot group with the 130gr Nosler B.T. at 3,080fps at a seated depth of 3.330" from Winchester OFB brass..... Winchester LR primer.... Not bad for a $200.00 rifle with a $30.00 Simmons "Blazer" scope........
Like someone else on this forum once stated, If a .270 won't shoot with either 54.0gr of IMR4350 or 58.0-60.0gr of H4831 and a "good" 130gr bullet (Nosler, Sierra, Speer), It's got a bent barrel .........!!!
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gamestalker
member
I absolutely love IMR-4350 for the .270 win. and have been loading with it for decades. I also use RL19 with equally good results, and it may provide a tiny bit more performance regarding velocity.
My long time load for several of my 270 actions has been a 130 gr. PSP BT and 55.0 - 60.0 grs. of IMR-4350. The compressed load of IMR-4350 has provided very consistent velocities. However, in terms of velocity some is lost with the compressed charge. And another observed bennificial provision of compressed 4350 charges, is pressure also comes down slightly and stabilizes in the same manner.
Your over all load looks just fine from a load developement starting point perspective, but as you begin the work up process you'll very likely recognize the gained consistencies of velocity, pressures, and accuracy up toward the higher end. Once you've worked with the 270 win. with 4350, you'll learn to grow comfortable with it's stabile properties as a compressed charge, thus reaping the full bennifts.
Regarding seating depth (OAL), let the rifle dictate what works best in your action. I start at the lands and work back. Of all the OAL's that have provided the best accuracy, have been up close and personal with the lands. Of course not all throats will allow for this and still function in the magazine. This is somehting you'll have to decipher by trial and error.
Good luck and happy loading!
My long time load for several of my 270 actions has been a 130 gr. PSP BT and 55.0 - 60.0 grs. of IMR-4350. The compressed load of IMR-4350 has provided very consistent velocities. However, in terms of velocity some is lost with the compressed charge. And another observed bennificial provision of compressed 4350 charges, is pressure also comes down slightly and stabilizes in the same manner.
Your over all load looks just fine from a load developement starting point perspective, but as you begin the work up process you'll very likely recognize the gained consistencies of velocity, pressures, and accuracy up toward the higher end. Once you've worked with the 270 win. with 4350, you'll learn to grow comfortable with it's stabile properties as a compressed charge, thus reaping the full bennifts.
Regarding seating depth (OAL), let the rifle dictate what works best in your action. I start at the lands and work back. Of all the OAL's that have provided the best accuracy, have been up close and personal with the lands. Of course not all throats will allow for this and still function in the magazine. This is somehting you'll have to decipher by trial and error.
Good luck and happy loading!
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GooseGestapo
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gamestalker; didn't you mean 56.0gr of IMR4350, not 60.0gr !!!???
60.0gr will probably lock up the bolt, if you can even get that much powder in the case. I have used 59.0gr of IMR4350 with a 150gr bullet from the .30/06 for 3,000fps and excellent accuracy. But IMO, 56.0 is burnishing case heads from my .270wcf and and flattening primers in my gun and accuracy is starting to get erratic...... But, you could have a feakishly large chamber..... I have seen them.....
60.0gr will probably lock up the bolt, if you can even get that much powder in the case. I have used 59.0gr of IMR4350 with a 150gr bullet from the .30/06 for 3,000fps and excellent accuracy. But IMO, 56.0 is burnishing case heads from my .270wcf and and flattening primers in my gun and accuracy is starting to get erratic...... But, you could have a feakishly large chamber..... I have seen them.....
TwoEyedJack
Member
I have had really good luck with 56 gr. of H4350 under a 130 gr. Nosler BT in my .270 rifles.
My all time favorite was H450 and I should have bought a bunch of it before it went obsolete. Metered like water and my old Remington grouped better than any other powder I ever tried.
My all time favorite was H450 and I should have bought a bunch of it before it went obsolete. Metered like water and my old Remington grouped better than any other powder I ever tried.
gamestalker
member
No, I have used IMR-4350 in loads that completely fill the case, compressed loads that are around the 60.0 gr. mark. Once you reach the compressed point the pressures actually begin to come down slightly as does velcoity. But consistency, in terms of accuracy and velocity really come together.
This is not something you just do without a proper approach. A full work up to that charge is based on pressure signs and should not be attempted in any other fashion.
This is not something you just do without a proper approach. A full work up to that charge is based on pressure signs and should not be attempted in any other fashion.
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