Loading density is great for magnums, nicely filling the case at utmost fees, contributing to exceptional uniformity and accuracy. The most crucial capabilities in the Enduron series are copper fouling eliminator, insensitivity to temperature improvements, best loading density and being eco-friendly. IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially unique.
H4227 was discontinued many many years ago and was the slower burning of The 2 - Hodgdon's rep I questioned concerning this claimed it absolutely was 2008 or 2009 when it was discontinued. They were NOT the same powders, nevertheless the starting up load for both was Safe and sound for the opposite - once again, confirmed from Hodgdon.
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H4227 and IMR-4227 are identical. Here's a reference for this you can Look at you with the e mail to Hodgdon.
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62mm NATO, 22-250 Remington or 257 Roberts, amid other cartridges. The main characteristics of the Enduron sequence are copper fouling eliminator, insensitivity to temperature changes, excellent loading density and being environmentally friendly. This propellant performs comparably to Hodgdon Varget but cost weights are materially different.
Why guess? Contact Hodgdon, they'll show you. To include on the confusion, my comprehension is H4227 is presently being packaged and bought as IMR4227. This wasn't the case if the two have been separated corporation offerings.
Max. masses vary somewhat but velocities are quite near concerning The 2 powders assuming equivalent pressures. Past I read H4227 was remaining discontinued as IMR4227 outsells it by a broad margin.
Worked wonderful and was low-priced to get going. But like an addicting drug the moment trying it I've had that monkey on my back again at any time because.
Hundreds nicely and shoots perfectly in the click here application I’m employing it for. I've thought about Performing up some 45 extended colt and 454 casull rounds with 4227 but haven’t investigated it and haven’t done it, unsure if it’s even possible.
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Here is every one of the more mature info I've for .357 Mag utilizing IMR 4227. I hope it is beneficial to you personally. It really is taken from early ninety’s Speer, Sierra, and Lyman data. Remember to do be mindful, Shopfox made some valid factors about old powders Should you be unaware of your handling through the years.
Perhaps the most flexible propellant for preparing lessened masses is Accurate 5744, which was suitable for that reason.
The resident of a distant place may have planned to do sustenance searching and nevertheless have some meat after the bullet did its job. Inquiring just one caliber to get it done all was a tall purchase.